Can I use window.location.replace in an iframe? - javascript

We can use window.location.replace to avoid history, and to target on-page anchors without page reloads, but *not in iframes?
The problem is a CSP (content security policy) violation, which states script-src 'unsafe-inline' must be enabled. Except I don't have a CSP defined, and even if I define one and allow script-src 'unsafe-inline' it still gives the same violation error. Same result in ie11/chrome/ff.
iframe on the same domain (in the same directory).
Target the iframe in the console and use window.location.replace('/samepage.html#onpage_anchor') in console.
It works. It targets the on page anchor without reloading the page, and without history.
Put the same code inline on anchor links and it works.
Use the same code in external script, get the csp violation error. This works fine if not in an iframe.
I tried creating a CSP to allow the action, but not even the most permissive content security policies possible would allow it.
So I put together examples on plunker which allows multiple files so I could use proper hrefs which reference the parent/child pages.
Notes about the plunker examples:
The problem is not reproduced in these examples. The script works perfectly, even in the iframe. However, the same code does not work on my local server, or when I run it live on a VPS.
I suspect the CSP violation doesn't get triggered on plunker because plunker is presenting content to the browser via a kind of abstraction layer of some sort.
The first time you click the accordion links in the parent, it causes a refresh. This is because the way the page initially loads it doesn't reference index.html. Subsequent clicks work as expected without page reloads. Not an issue in the iframe because it does initially reference child.html
These are good examples to show the code without requiring alterations to make it work (as in the need to change the hrefs to make them work in stackoverflow snippets, mentioned below). It is also good as it shows the javascript working as it should. But it does not show the actually problem. You will still need to load it up in your editor and run it on a local server or live hosting environment to see the real problem.
Plunker examples: With script/without history. Without script/with history
Simple accordion with one entry. Sufficient to reproduce issue.
Clicking open/close will expand/collapse accordion, no JS required. The JS should do the exact same thing but without history. Works fine, but not in an iframe.
Code snippet notes:
You can run the snippet to get an idea about what I am describing, but it does not actually demonstrate the issue.
The snippet does not behave the way it would in a real browser, the javascript does not work.
The snippet shows the code, but it should be run in an iframe to see the issue. Run it outside an iframe to see the difference and how it should work.
Because of how the links work with the JS (replacing the whole url) they actually must be like this href="/thispage.html#ac1" rather than just href="#ac1" as they appear in the snippet (can't target the actual html page in the snippet). So if you try this in your editor (please do), then remember to change the links to this format this_document.html#anchor so they are still same page anchors, but the page.html is included in the link.
$(document).ready(function() {
// anchor links without history
$.acAnch = function(event) {
event.preventDefault();
var anchLnk = $(event.target);
var anchTrgt = anchLnk.attr('href');
window.location.replace(anchTrgt);
}
// listen for anchor clicks
$('.accordion').on('click', 'a', $.acAnch);
});
div#sample.example .accordion {
margin-left: 50px;
margin-top: 50px;
}
div#sample.example section {
box-sizing: border-box;
clear: both;
position: relative;
display: block;
width: 300px;
height: 32px;
padding: 0;
background-color: #fff;
box-shadow: inset 0 0 1px 1px #000;
overflow: hidden;
}
div#sample.example section:target {
height: auto;
}
div#sample.example a {
box-sizing: border-box;
display: block;
float: right;
width: 50%;
height: 32px;
margin: 0;
padding: 4px;
text-align: center;
font-size: 16px;
color: #000;
background-color: #fff;
box-shadow: inset 0 0 1px 1px #000;
}
div#sample.example p {
box-sizing: border-box;
clear: both;
display: block;
width: 100%;
padding: 16px;
margin: 16px 0 0;
text-align: center;
color: #000;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="sample" class="example">
<article class="accordion">
<section id="ac1">
Close
Open
<div class="ac-content">
<p>The elephants talking in their sleep kept me up so late.</p>
</div>
</section>
</article>
</div>
$(document).ready(function() {
// anchor links without history
$.acAnch = function(event) {
event.preventDefault();
var anchLnk = $(event.target);
var anchTrgt = anchLnk.attr('href');
window.location.replace(anchTrgt);
}
// listen for anchor clicks
$('.accordion').on('click', 'a', $.acAnch);
});
This is very simple:
acAnch function takes the href attribute and drops it into window.location.replace().
Listen for clicks on anchors within the accordion to run the acAnch function.
So all the script does is run window.location.replace('/this_same_page.html#on_page_anchor')
If you put that in the console it works, no CSP violation. But running it from external script doesn't work.
Inline on the links works fine:
onclick="event.preventDefault();window.location.replace('/thispage.html#acc0');"
onclick="event.preventDefault();window.location.replace('/thispage.html#acc1');"
Putting that on the respective links works perfectly, but I really prefer not to use inline script like that. There must be a way to do this with an external script.
I tried running the javascript on parent instead of in the iframe (with modifications to select the links within the child of course). Same CSP error result.
Why am I doing this? Well the site is much more complex than the example. Anchors in iframes work fine but they add history. If you run the code above without the javascript, (or just run the snippet), open and close the accordion a few times, and use back button, it will go back through the open close states.
I wouldn't mind the history, but if it is in an iframe, when you leave the parent page and then come back to it, the history in the iframe is broken. Going back doesn't go back through the accordion states anymore, but instead just keeps reloading the iframe. Initially the anchors don't cause iframe reloads but just steps through accordion state history, which works fine, until you leave the page and come back. Then back no longer goes through the accordion states, but just goes through a pile of identical iframe reloads. It is very user unfriendly behavior.
I don't need to use location.replace if there is another method that will work. I have tried many other approaches though, and I've found that methods that can achieve the same result, generally result in the same error.
The goal is simply to activate the anchor links on page without reloading, and without history, inside an iframe.
The inline script works. Can we make it work in an external .js file?

This may be a non-issue, but you mentioned this is an issue on you local server, and I noticed your code relys on relative links.
If you are not setup correctly, you may be serving resource via the file:// protocol or somehow using a localhost, not recognized as a valid TLD, which would result in file:// protocol as default, or invalidate CSP
In any event, try using absolute URLs and see if that resolves the issue

yes you can use iframe with -window-location-replace
for reference, you can use this ref link Javascript location.replace and iframe

You can toggle an active class to the parent element like this using anchor click events.
// Code goes here
$(window).on('load', function() {
$('.accordion section').on('click', '.ac-open', function(e) {
e.preventDefault();
$(e.target).parent().addClass('active');
});
$('.accordion section').on('click', '.ac-close', function(e) {
e.preventDefault();
$(e.target).parent().removeClass('active');
});
});
/* Styles go here */
html,
body {
margin: 0;
padding: 0;
}
.flt-lft {
float: left;
margin: 16px;
}
h4 {
text-align: center;
margin: 0;
padding: 8px;
color: white;
background-color: green;
}
/* #sample.example .accordion {
margin-left: 50px;
margin-top: 50px;
} */
#sample.example section {
box-sizing: border-box;
clear: both;
position: relative;
display: block;
width: 300px;
height: 32px;
padding: 0;
background-color: #fff;
box-shadow: inset 0 0 1px 1px #000;
overflow: hidden;
}
#sample.example section.active {
height: auto;
}
#sample.example a {
box-sizing: border-box;
display: block;
float: right;
width: 50%;
height: 32px;
margin: 0;
padding: 4px;
text-align: center;
font-size: 16px;
color: #000;
background-color: #fff;
box-shadow: inset 0 0 1px 1px #000;
}
#sample.example p {
box-sizing: border-box;
clear: both;
display: block;
width: 100%;
padding: 16px;
margin: 16px 0 0;
text-align: center;
color: #000;
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="container">
<div class="flt-lft">
<h4>parent</h4>
<div id="sample" class="example">
<article class="accordion">
<section id="ac1">
Close
Open
<div class="ac-content">
<p>The elephants talking in their sleep kept me up so late.</p>
</div>
</section>
</article>
</div>
</div>
<div class="flt-lft">
<h4>iframe</h4>
<iframe src="child.html"></iframe>
</div>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="script.js"></script>
</body>
</html>

yes you can , here is a live example from below link
https://codepen.io/pmk/pen/wOwoyW
HTML
<div class="">
<h3>Testing 4 methods of writing dynamic content to Iframe.</h3>
<p>#1 use <strong>document.write()</strong>,
#2 use <strong>URL.createObjectURL()</strong>,
#3 use <strong>encodeURI()</strong> and #4 <strong>iframe.srcdoc</strong></p>
<p>Using the recommended method <strong>URL.createObjectURL()</strong> leads to problems when trying to retrieve the <strong>windown.location</strong> object. (Same does the <strong>encodeURI()</strong> method)<p/>
<p>Only reliable method if you need window.location, seems to be the old obsolete <strong>document.write()</strong> method.</p>
<iframe id="iframe1"></iframe>
<iframe id="iframe2"></iframe>
<iframe id="iframe3"></iframe>
<iframe id="iframe4"></iframe>
</div>
CSS
#import url(https://fonts.googleapis.com /css?family=Fira+Sans:400,500italic);
html {
height: 100%;
background-color: rgba(34,32,36,1);
}
body {
text-align: center;
font: normal 100% 'Fira Sans', sans-serif;
color: #aaa;
}
iframe {
width: 40%;
height: 200px;
background: white;
}
JS
var template = [
'<!DOCTYPE HTML>',
'<html>',
'<head>',
'</head>',
'<body>',
'<script>',
'document.write("<pre>" + JSON.stringify(window.location, null, 4) +
"</pre>");',
'<\/script>',
'</body>',
'</html>'
].join('');
var iframe1El = document.querySelector('#iframe1');
var iframe1 = iframe1El.contentWindow || (
iframe1El.contentDocument.document || iframe1El.contentDocument);
var iframe2El = document.querySelector('#iframe2');
var iframe2 = iframe2El.contentWindow ||
( iframe2El.contentDocument.document || iframe2El.contentDocument);
var iframe3El = document.querySelector('#iframe3');
var iframe3 = iframe3El.contentWindow ||
( iframe3El.contentDocument.document ||
iframe3El.contentDocument);
var iframe4El = document.querySelector('#iframe4');
var iframe4 = iframe4El.contentWindow ||
( iframe4El.contentDocument.document || iframe4El.contentDocument);
iframe1.document.open();
iframe1.document.write(template);
iframe1.document.close();
var bData = new Blob([template], {type: 'text/html'});
iframe2El.onload = function() { window.URL.revokeObjectURL(bData); };
iframe2El.src = window.URL.createObjectURL(bData);
iframe3El.src = 'data:text/html;charset=utf-8,' +
encodeURI(template);
iframe4El.srcdoc = template;

Yes you can use it with iframe.

you can use CSS instead of html iframe tag
because iframe tag is removed in html

Related

jQuery: using a div embedded in a JavaScript variable as a jQuery selector

I have a jQuery custom scrollbar, and I invoke it like this:
<script>
(function($){
$(window).on("load",function(){
$(".main_text,#C2,.png_container").mCustomScrollbar();
});
})(jQuery);
That works correctly for all of the page elements except .png_container, but unlike the other sections, that section is only used in a JavaScript variable that is used to substitute text in a placeholder ID, and I think that's where the problem is.
Here is how it's called from an "onclick" button event:
<div class="main_text">
<div id="C2">Main Text</div>
</div>
if (type == 101) {
var X = "<header>First Section</header><br>A classic example of good form/<br><br>More information<ul type=\"circle\"><li>Element Point 1<br></li><li>Element Point 1</li></ul><i><span class=\"span_01\">So much better</i></span><br><br><div class=\"png_container\"><img class=\"png_format\" src=\"images/Element 001.png\"></div>"}
document.querySelector("#C2").innerHTML = X;}
The png_container has a separate set of scroll bars, but they are not replaced by the custom scroll bars (the other page sections do get the custom scroll bars).
Here is the relevant css:
.png_container{
overflow: auto;
overflow-y: auto;
overflow-x: auto;
height: 400px;
width: 800px;
border: 2px solid;
border-color: green;
}
#C2{
color:#DBDBDB;
font-family: camphorW04-Thin,calibri,arial;
font-size: 14pt;
text-indent: 0px;
width: auto;
margin: auto;
margin-left: 20px;
margin-right: 250px;
}
So my question is: how can I replace the scroll bars on a section that is embedded in a JavaScript variable, as shown above?
My research has found some similar questions, but none that answer this specific question, so I hope somebody knows the answer. Thanks very much for any ideas.
You initialize the mCustomScrollbar plugin on load this way:
$(window).on("load",function(){
$(".main_text,#C2,.png_container").mCustomScrollbar();
});
The two first selectors have matching elements at this moment. But there is no existing element to match the last selector since .png_container is appended on click.
So you can safely remove .png_container from the load handler...
And initialise mCustomScrollbar on .png_container when it exists.
$(window).on("load",function(){
$(".main_text,#C2").mCustomScrollbar(); // Remove .png_container
});
$(".something").on("click",function(){
if (type == 101) {
var X = "<header>First Section</header><br>A classic example of good form/<br><br>More information<ul type=\"circle\"><li>Element Point 1<br></li><li>Element Point 1</li></ul><i><span class=\"span_01\">So much better</i></span><br><br><div class=\"png_container\"><img class=\"png_format\" src=\"images/Element 001.png\"></div>"}
document.querySelector("#C2").innerHTML = X;
$(".png_container").mCustomScrollbar(); // Add this.
}

How to create an interactive navigation, in a circular design, using HTML, CSS, and JQuery

// JavaScript Document
$('.page').hide();
$(".btns").click(function(e){
e.preventDefault(); //this method stops the default action of an element from happening.
var $me = $(this); //$(this) references .btns, the object in local scope.
var $myContent = $($me.attr('href')); //pulls href of page 01, 02, or 03.
$('.page').hide(); //hides all pages
$myContent.fadeIn();//fades in clicked href connected to btn
$(".btns").removeClass('selected');//
$me.addClass('selected');
});
*{
border-spacing: 0px;
}
body{
margin: 0px;
padding: 0px;
}
.circle-container {
position: relative;
width: 24em;
height: 24em;
padding: 2.8em;
/*2.8em = 2em*1.4 (2em = half the width of a link with img, 1.4 = sqrt(2))*/
border: dashed 1px;
border-radius: 50%;
margin: 1.75em auto 0;
}
.circle-container a {
display: block;
position: absolute;
top: 50%; left: 50%;
width: 4em; height: 4em;
margin: -2em;
}
.circle-container img { display: block; width: 100%; }
.deg0 { transform: translate(12em); }
<div class="body_content">
<div class="page" id="page_01">
<h2>1. Category 1</h2>
</div>
</div>
<div class="circle-container">
<nav class="navigation">
<a href="#page_01" class="btns deg0" >
<img id="one" src="imgs/button.png" alt="page01"/>
</a>
</nav>
</div>
I have a unique situation that I would like to discuss with you all. I am trying to create a web page that has a circular navigation, as shown here enter image description here
Each one of these buttons would display content when clicked, like an in-page link. The JQuery is as shown enter image description here
The concept seems simple enough, force all content to hide, when a user clicks a button, the page content linked to that button shows. It works when the links are inline or block display, but when in a circle, the links don't work, the button content doesn't show. Has anyone worked with a similar issue? Or would anyone have a potential solution? I apologize for the vagueness of the questions but the issue seems multi-faceted. Any advice or ideas would be greatly appreciated.
Are you sure your jQuery reference is working? I don't see any issue with the code, the click event should fire when you click on the links. Check the console for any errors, I strongly believe jQuery might not get loaded.

How to change div elements' css inside iframe [duplicate]

I have not had much success finding how to style Google's new recaptcha (v2). The eventual goal is to make it responsive, but I am having difficulty applying styling for even simple things like width.
Their API documentation does not appear to give any specifics on how to control styling at all other than the theme parameter, and simple CSS & JavaScript solutions haven't worked for me.
Basically, I need to be able to apply CSS to Google's new version of reCaptcha. Using JavaScript with it is acceptable.
Overview:
Sorry to be the answerer of bad news, but after research and debugging, it's pretty clear that there is no way to customize the styling of the new reCAPTCHA controls. The controls are wrapped in an iframe, which prevents the use of CSS to style them, and Same-Origin Policy prevents JavaScript from accessing the contents, ruling out even a hacky solution.
Why No Customize API?:
Unlike reCAPTCHA API Version 1.0, there are no customize options in API Version 2.0. If we consider how this new API works, it's no surprise why.
Excerpt from Are you a robot? Introducing “No CAPTCHA reCAPTCHA”:
While the new reCAPTCHA API may sound simple, there is a high degree of sophistication behind that modest checkbox. CAPTCHAs have long relied on the inability of robots to solve distorted text. However, our research recently showed that today’s Artificial Intelligence technology can solve even the most difficult variant of distorted text at 99.8% accuracy. Thus distorted text, on its own, is no longer a dependable test.
To counter this, last year we developed an Advanced Risk Analysis backend for reCAPTCHA that actively considers a user’s entire engagement with the CAPTCHA—before, during, and after—to determine whether that user is a human. This enables us to rely less on typing distorted text and, in turn, offer a better experience for users. We talked about this in our Valentine’s Day post earlier this year.
If you were able to directly manipulate the styling of the control elements, you could easily interfere with the user-profiling logic that makes the new reCAPTCHA possible.
What About a Custom Theme?:
Now the new API does offer a theme option, by which you can choose a preset theme such as light and dark. However there is not presently a way to create a custom theme. If we inspect the iframe, we will find the theme name is passed in the query string of the src attribute. This URL looks something like the following.
https://www.google.com/recaptcha/api2/anchor?...&theme=dark&...
This parameter determines what CSS class name is used on the wrapper element in the iframe and determines the preset theme to use.
Digging through the minified source, I found that there are actually 4 valid theme values, which is more than the 2 listed in the documentation, but default and standard are the same as light.
We can see the code that selects the class name from this object here.
There is no code for a custom theme, and if any other theme value is specified, it will use the standard theme.
In Conclusion:
At present, there is no way to fully style the new reCAPTCHA elements, only the wrapper elements around the iframe can be stylized. This was almost-certainly done intentionally, to prevent users from breaking the user profiling logic that makes the new captcha-free checkbox possible. It is possible that Google could implement a limited custom theme API, perhaps allowing you to choose custom colors for existing elements, but I would not expect Google to implement full CSS styling.
As guys mentioned above, there is no way ATM. but still if anyone interested, then by adding in just two lines you can at least make it look reasonable, if it break on any screen. you can assign different value in #media query.
<div id="recaptchaContainer" style="transform:scale(0.8);transform-origin:0 0"></div>
Hope this helps anyone :-).
I use below trick to make it responsive and remove borders. this tricks maybe hide recaptcha message/error.
This style is for rtl lang but you can change it easy.
.g-recaptcha {
position: relative;
width: 100%;
background: #f9f9f9;
overflow: hidden;
}
.g-recaptcha > * {
float: right;
right: 0;
margin: -2px -2px -10px;/*remove borders*/
}
.g-recaptcha::after{
display: block;
content: "";
position: absolute;
left:0;
right:150px;
top: 0;
bottom:0;
background-color: #f9f9f9;
clear: both;
}
<div class="g-recaptcha" data-sitekey="Your Api Key"></div>
<script src='https://www.google.com/recaptcha/api.js?hl=fa'></script>
Unfortunately we cant style reCaptcha v2, but it is possible to make it look better, here is the code:
Click here to preview
.g-recaptcha-outer{
text-align: center;
border-radius: 2px;
background: #f9f9f9;
border-style: solid;
border-color: #37474f;
border-width: 1px;
border-bottom-width: 2px;
}
.g-recaptcha-inner{
width: 154px;
height: 82px;
overflow: hidden;
margin: 0 auto;
}
.g-recaptcha{
position:relative;
left: -2px;
top: -1px;
}
<div class="g-recaptcha-outer">
<div class="g-recaptcha-inner">
<div class="g-recaptcha" data-size="compact" data-sitekey="YOUR KEY"></div>
</div>
</div>
Add a data-size property to the google recaptcha element and make it equal to "compact" in case of mobile.
Refer: google recaptcha docs
What you can do is to hide the ReCaptcha Control behind a div. Then make your styling on this div. And set the css "pointer-events: none" on it, so you can click through the div (Click through a DIV to underlying elements).
The checkbox should be in a place where the user is clicking.
You can recreate recaptcha , wrap it in a container and only let the checkbox visible. My main problem was that I couldn't take the full width so now it expands to the container width. The only problem is the expiration you can see a flick but as soon it happens I reset it.
See this demo http://codepen.io/alejandrolechuga/pen/YpmOJX
function recaptchaReady () {
grecaptcha.render('myrecaptcha', {
'sitekey': '6Lc7JBAUAAAAANrF3CJaIjt7T9IEFSmd85Qpc4gj',
'expired-callback': function () {
grecaptcha.reset();
console.log('recatpcha');
}
});
}
.recaptcha-wrapper {
height: 70px;
overflow: hidden;
background-color: #F9F9F9;
border-radius: 3px;
box-shadow: 0px 0px 4px 1px rgba(0,0,0,0.08);
-webkit-box-shadow: 0px 0px 4px 1px rgba(0,0,0,0.08);
-moz-box-shadow: 0px 0px 4px 1px rgba(0,0,0,0.08);
height: 70px;
position: relative;
margin-top: 17px;
border: 1px solid #d3d3d3;
color: #000;
}
.recaptcha-info {
background-size: 32px;
height: 32px;
margin: 0 13px 0 13px;
position: absolute;
right: 8px;
top: 9px;
width: 32px;
background-image: url(https://www.gstatic.com/recaptcha/api2/logo_48.png);
background-repeat: no-repeat;
}
.rc-anchor-logo-text {
color: #9b9b9b;
cursor: default;
font-family: Roboto,helvetica,arial,sans-serif;
font-size: 10px;
font-weight: 400;
line-height: 10px;
margin-top: 5px;
text-align: center;
position: absolute;
right: 10px;
top: 37px;
}
.rc-anchor-checkbox-label {
font-family: Roboto,helvetica,arial,sans-serif;
font-size: 14px;
font-weight: 400;
line-height: 17px;
left: 50px;
top: 26px;
position: absolute;
color: black;
}
.rc-anchor .rc-anchor-normal .rc-anchor-light {
border: none;
}
.rc-anchor-pt {
color: #9b9b9b;
font-family: Roboto,helvetica,arial,sans-serif;
font-size: 8px;
font-weight: 400;
right: 10px;
top: 53px;
position: absolute;
a:link {
color: #9b9b9b;
text-decoration: none;
}
}
g-recaptcha {
// transform:scale(0.95);
// -webkit-transform:scale(0.95);
// transform-origin:0 0;
// -webkit-transform-origin:0 0;
}
.g-recaptcha {
width: 41px;
/* border: 1px solid red; */
height: 38px;
overflow: hidden;
float: left;
margin-top: 16px;
margin-left: 6px;
> div {
width: 46px;
height: 30px;
background-color: #F9F9F9;
overflow: hidden;
border: 1px solid red;
transform: translate3d(-8px, -19px, 0px);
}
div {
border: 0;
}
}
<script src='https://www.google.com/recaptcha/api.js?onload=recaptchaReady&&render=explicit'></script>
<div class="recaptcha-wrapper">
<div id="myrecaptcha" class="g-recaptcha"></div>
<div class="rc-anchor-checkbox-label">I'm not a Robot.</div>
<div class="recaptcha-info"></div>
<div class="rc-anchor-logo-text">reCAPTCHA</div>
<div class="rc-anchor-pt">
Privacy
<span aria-hidden="true" role="presentation"> - </span>
Terms
</div>
</div>
Great!
Now here is styling available for reCaptcha..
I just use inline styling like:
<div class="g-recaptcha" data-sitekey="XXXXXXXXXXXXXXX" style="transform: scale(1.08); margin-left: 14px;"></div>
whatever you wanna to do small customize in inline styling...
Hope it will help you!!
I came across this answer trying to style the ReCaptcha v2 for a site that has a light and a dark mode. Played around some more and discovered that besides transform, filter is also applied to iframe elements so ended up using the default/light ReCaptcha and doing this when the user is in dark mode:
.g-recaptcha {
filter: invert(1) hue-rotate(180deg);
}
The hue-rotate(180deg) makes it so that the logo is still blue and the check-mark is still green when the user clicks it, while keeping white invert()'ed to black and vice versa.
Didn't see this in any answer or comment so decided to share even if this is an old thread.
Just adding a hack-ish solution to make it responsive.
Wrap the recaptcha in an extra div:
<div class="recaptcha-wrap">
<div id="g-recaptcha"></div>
</div>
Add styles. This assumes the dark theme.
// Recaptcha
.recaptcha-wrap {
position: relative;
height: 76px;
padding:1px 0 0 1px;
background:#222;
> div {
position: absolute;
bottom: 2px;
right:2px;
font-size:10px;
color:#ccc;
}
}
// Hides top border
.recaptcha-wrap:after {
content:'';
display: block;
background-color: #222;
height: 2px;
width: 100%;
top: -1px;
left: 0px;
position: absolute;
}
// Hides left border
.recaptcha-wrap:before {
content:'';
display: block;
background-color: #222;
height: 100%;
width: 2px;
top: 0;
left: -1px;
position: absolute;
z-index: 1;
}
// Makes it responsive & hides cut-off elements
#g-recaptcha {
overflow: hidden;
height: 76px;
border-right: 60px solid #222222;
border-top: 1px solid #222222;
border-bottom: 1px solid #222;
position: relative;
box-sizing: border-box;
max-width: 294px;
}
This yields the following:
It will now resize horizontally, and doesn't have a border. The recaptcha logo would get cut off on the right, so I am hiding it with a border-right. It's also hiding the privacy and terms links, so you may want to add those back in.
I attempted to set a height on the wrapper element, and then vertically center the recaptcha to reduce the height. Unfortunately, any combo of overflow:hidden and a smaller height seems to kill the iframe.
in the V2.0 it's not possible. The iframe blocks all styling out of this. It's difficult to add a custom theme instead of the dark or light one.
Late to the party, but maybe my solution will help somebody.
I haven't found any solution that works on a responsive website when the viewport changes or the layout is fluid.
So I've created a jQuery script for django-cms that is dynamically adapting to a changing viewport.
I'm going to update this response as soon as I have the need for a modern variant of it that is more modular and has no jQuery dependency.
html
<div class="g-recaptcha" data-sitekey="{site_key}" data-size={size}>
</div>
css
.g-recaptcha { display: none; }
.g-recaptcha.g-recaptcha-initted {
display: block;
overflow: hidden;
}
.g-recaptcha.g-recaptcha-initted > * {
transform-origin: top left;
}
js
window.djangoReCaptcha = {
list: [],
setup: function() {
$('.g-recaptcha').each(function() {
var $container = $(this);
var config = $container.data();
djangoReCaptcha.init($container, config);
});
$(window).on('resize orientationchange', function() {
$(djangoReCaptcha.list).each(function(idx, el) {
djangoReCaptcha.resize.apply(null, el);
});
});
},
resize: function($container, captchaSize) {
scaleFactor = ($container.width() / captchaSize.w);
$container.find('> *').css({
transform: 'scale(' + scaleFactor + ')',
height: (captchaSize.h * scaleFactor) + 'px'
});
},
init: function($container, config) {
grecaptcha.render($container.get(0), config);
var captchaSize, scaleFactor;
var $iframe = $container.find('iframe').eq(0);
$iframe.on('load', function() {
$container.addClass('g-recaptcha-initted');
captchaSize = captchaSize || { w: $iframe.width() - 2, h: $iframe.height() };
djangoReCaptcha.resize($container, captchaSize);
djangoReCaptcha.list.push([$container, captchaSize]);
});
},
lateInit: function(config) {
var $container = $('.g-recaptcha.g-recaptcha-late').eq(0).removeClass('.g-recaptcha-late');
djangoReCaptcha.init($container, config);
}
};
window.djangoReCaptchaSetup = window.djangoReCaptcha.setup;
With the integration of the invisible reCAPTCHA you can do the following:
To enable the Invisible reCAPTCHA, rather than put the parameters in a div, you can add them directly to an html button.
a. data-callback=””. This works just like the checkbox captcha, but is required for invisible.
b. data-badge: This allows you to reposition the reCAPTCHA badge (i.e. logo and
‘protected by reCAPTCHA’ text) . Valid options as ‘bottomright’ (the default),
‘bottomleft’ or ‘inline’ which will put the badge directly above the button. If you
make the badge inline, you can control the CSS of the badge directly.
In case someone struggling with the recaptcha of contact form 7 (wordpress) here is a solution working for me
.wpcf7-recaptcha{
clear: both;
float: left;
}
.wpcf7-recaptcha{
margin-right: 6px;
width: 206px;
height: 65px;
overflow: hidden;
border-right: 1px solid #D3D3D3;
}
.wpcf7-recaptcha iframe{
padding-bottom: 15px;
border-bottom: 1px solid #D3D3D3;
background: #F9F9F9;
border-left: 1px solid #d3d3d3;
}
if you use scss, that worked for me:
.recaptcha > div{
transform: scale(0.84);
transform-origin: 0;
}
If someone is still interested, there is a simple javascript library (no jQuery dependency), named custom recaptcha. It lets you customize the button with css and implement some js events (ready/checked). The idea is to make the default recaptcha "invisible" and put a button over it. Just change the id of the recaptcha and that's it.
<head>
<script src="https://azentreprise.org/download/custom-recaptcha.min.js"></script>
<style type="text/css">
#captcha {
float: left;
margin: 2%;
background-color: rgba(72, 61, 139, 0.5); /* darkslateblue with 50% opacity */
border-radius: 2px;
font-size: 1em;
color: #C0FFEE;
}
#captcha.success {
background-color: rgba(50, 205, 50, 0.5); /* limegreen with 50% opacity */
color: limegreen;
}
</style>
</head>
<body>
<div id="captcha" data-sitekey="your_site_key" data-label="Click here" data-label-spacing="15"></div>
</body>
See https://azentreprise.org/read.php?id=1 for more information.
I am just adding this kind of solution / quick fix so it won't get lost in case of a broken link.
Link to this solution "Want to add link How to resize the Google noCAPTCHA reCAPTCHA | The Geek Goddess" was provided by Vikram Singh Saini and simply outlines that you could use inline CSS to enforce framing of the iframe.
// Scale the frame using inline CSS
<div class="g-recaptcha" data-theme="light"
data-sitekey="XXXXXXXXXXXXX"
style="transform:scale(0.77);
-webkit-transform:scale(0.77);
transform-origin:0 0;
-webkit-transform-origin:0 0;
">
</div>
// Scale the images using a stylesheet
<style>
#rc-imageselect, .g-recaptcha {
transform:scale(0.77);
-webkit-transform:scale(0.77);
transform-origin:0 0;
-webkit-transform-origin:0 0;
}
</style>
You can use some CSS for Google reCAPTCHA v2 styling on your website:
– Change background, color of Google reCAPTCHA v2 widget:
.rc-anchor-light {
background: #fff!important;
color: #fff!important; }
or
.rc-anchor-normal{
background: #000 !important;
color: #000 !important; }
– Resize the Google reCAPTCHA v2 widget by using this snippet:
.rc-anchor-light {
transform:scale(0.9);
-webkit-transform:scale(0.9); }
– Responsive your Google reCAPTCHA v2:
#media only screen and (min-width: 768px) {
.rc-anchor-light {
transform:scale(0.85);
-webkit-transform:scale(0.85); }
}
All elements, property of CSS above that’s just for your reference. You can change them by yourself (only using CSS class selector).
Refer on OIW Blog - How To Edit CSS of Google reCAPTCHA (Re-style, Change Position, Resize reCAPTCHA Badge)
You can also find out Google reCAPTCHA v3's styling there.
A bit late but I tried this and it worked to make the Recaptcha responsive on screens smaller than 460px width. You can't use css selector to select elements inside the iframe. So, better use the outermost parent element which is the class g-recaptcha to basically zoom-out i.e transform the size of the entire container. Here's my code which worked:
#media(max-width:459.99px) {
.modal .g-recaptcha {
transform:scale(0.75);
-webkit-transform:scale(0.75); }
}
}
Incase someone wants to resize recaptcha for small devices.
I was using recaptcha V2 with primeng p-captcha (for angular). The issue was that for smaller screens it would go out of the screen.
Although you can't actually resize it (the external thing and all everyone has explained it above) but there is a way with transform property (scaling the the container)
this was my code below the way, I achieved it
p-captcha div div {
transform:scale(0.9) !important;
-webkit-transform:scale(0.9) !important;
transform-origin:0 0 !important;
-webkit-transform-origin:0 0 !important;
}
Other than p-captcha you can use this code snippet below
.g-recaptcha {
transform:scale(0.9);
transform-origin:0 0;
}
Before
After
Topic is old, but I also wanted to scale the reCAPTCHA widget -- but to make it bigger for phone users, unlike many others who wanted it smaller. The only way that worked was transform: scale(x), but that seemed to make the widget too wide for my page, thus shrinking the rest of the form on the page. Using a container div as shown below fixed my problem, and hopefully it will help someone else who thinks a bigger version is better on a small screen.
<style>
:root {
/* factor to scale the Google widget in potrait mode (on a phone) */
--recaptcha-scale: 2;
}
#media screen and (orientation: portrait) {
/* needed to rein in the width of inner div when it is scaled */
#g_recaptcha_div_container {
width: calc(100vmin / var(--recaptcha-scale));
}
#g_recaptcha_div {
transform: scale(var(--recaptcha-scale));
transform-origin: 0 0;
}
#submit_button {
width: 65vmin;
height: 9vmin;
font-size: 7vmin;
/* needed to scoot the button out from under the scaled div */
margin-top: 10vmin;
}
}
</style>
<html>
<!-- top of form with a bunch of fields to create an acct -->
<div id="g_recaptcha_div_container">
<div id="g_recaptcha_div" class="g-recaptcha" data-sitekey="foo">
</div>
</div>
<input id="submit_button" type="submit" value="Create Account">
<!-- bottom of form -->
</html>
You can try to color it with this css filter hack:
.colorize-pink {
filter: brightness(0.5) sepia(1) hue-rotate(-70deg) saturate(5);
}
.colorize-navy {
filter: brightness(0.2) sepia(1) hue-rotate(180deg) saturate(5);
}
and for the size, use transform css hack
.captcha-size {
transform:scale(0.8);transform-origin:0 0
}
Lets play a little with JavaScript:
First at all, we know that recaptcha badget include all the shit from the most crazy people on Google, so you can only make changes with theme "dark" and "light" on your web.
Take a look to my website
SantiagoSoñora.
let recaptcha = document.querySelector('.g-recaptcha');
With this, you only can touch simple settings of the badge, like z-index and size, but no much more...
So far, i made two functions that set data-theme to light or dark mode at innit. Note that its neccessary assign the "light" because Google not include that by default.
function reCaptchaDark() {
document.addEventListener('DOMContentLoaded', (event) => {
recaptcha.setAttribute("data-theme", "dark");
})
}
function reCaptchaLight() {
document.addEventListener('DOMContentLoaded', (event) => {
recaptcha.setAttribute("data-theme", "light");
})
}
Then, for example, my web looks if user prefers a dark or a light theme, and set that configurations to the recaptcha bag:
(theme.onLoad = function() {
if (window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches) {
reCaptchaDark();
toggleTheme();
}
else {
reCaptchaLight();
}
})();
Note that my code for toggle from dark to light is on the toggleTheme() function.
Keep doing magic: You should configure a class on the html tag or something else on your web for made the change between dark and light theme, and with that we now modify the src on the iframe so when we toggle dark/light mode ,with our button it changes:
theme.onclick = function() {
toggleTheme();
if (html.classList.contains('dark')) {
recaptcha.setAttribute("data-theme", "dark");
setTimeout(function() {
let iframes = document.querySelectorAll('iframe');
iframes[0].src = iframes[0].src.replace('&theme=light', '&theme=dark');
}, 0);
}
else {
recaptcha.setAttribute("data-theme", "light");
setTimeout(function() {
let iframes = document.querySelectorAll('iframe');
iframes[0].src = iframes[0].src.replace('&theme=dark', '&theme=light');
}, 0);
}
}
And here you go, the recaptcha badge change from dark to light "preassigned" themes by Google bad guys.
And last but not least, a function that updates the page to change if your theme is dark by default.
This update the LocalStorage
(function() {
if( window.localStorage ) {
if( !localStorage.getItem('firstLoad') ) {
localStorage['firstLoad'] = true;
window.location.reload();
}
else
localStorage.removeItem('firstLoad');
}
})();
You can use the class .grecaptcha-badge for some css changes, like opacity and box-shadow, -> (use !important)
Thats all, hope you can implement on your site

Create and Display a Div using JQuery without distorting other elements

I am trying to create a div and show a timeout message in there. But it actually distorts other parts of Page. For eg see below. Session Timed out is the div with the message.
Now I don't want this to happen. PFB the JQuery code I am using to create this Div
function ShowSessionTimeOutDiv() {
var styler = document.createElement("div");
styler.setAttribute("style","font-size:15px;width:auto;height:auto;top:50%;left:40%;color:red;");
styler.innerHTML = "<b><i>Session TimedOut, Please refresh the Page</i></b>";
document.body.appendChild(styler);
var currentDiv = $('#GoToRequestControl1_UpdatePanel1').get(0);
currentDiv.parentNode.insertBefore(styler,currentDiv) ;
}
Am I missing something here? The Part in which this div is being displayed is coming from Master Page.
Have you tried the position:fixed styling on it in css, i did that on one of my websites and it didn't distort anything.
A page has a natural flow of its elements based on the default display rules specified by the W3C. When you add a div in between other elements it naturally affects the layout of the page; the positions of the other elements.
In order to drop in a new element without it affecting other elements you have to either reserve space for it, or take it out of the normal page flow.
There are a couple of ways to take an element out of the flow — you can float it, float:left or float:right, which is great, for example, to stack blocks on the left (instead of top-down) and let them wrap to new rows as available width changes. Using a flex layout gives you a lot of control also. But in this case of one thing popping up, changing the positioning of the new element is the most straightforward and can let you put the block exactly where you want it.
I have a demonstration and full explanation in a fiddle showing several examples along the way to getting what you want.
Basically, styling is needed to reposition the timeout message element that you're inserting. Styling is better done with CSS styles, compared to adding a bunch of inline styles. If I put my timeout popup message in a "messagebox" I can make a class for it.
/* Your styles, plus a couple extra to make the example stand out better */
div.messagebox {
font-size: 16px;
width: auto;
height: auto;
top: 40%;
left: 30%;
background-color: white;
border: 2px solid black;
}
Likewise, style the message itself with a class, instead of using inline styles and the deprecated presentational tags <b> and <i>.
/* I want the message in a messagebox to be bold-italic-red text. */
div.messagebox .message {
color: red;
font-style: italic;
font-weight: bold;
}
The big difference is that we will change the positioning of the element from the default static to instead use absolute positioning:
/* I don't really recommend a class called "positioned".
A class should describe the kind of thing the element *is*
not how it *looks*
*/
div.messagebox.positioned {
position: absolute;
width: 40%;
padding: 1.5em;
}
/* The container of the positioned element also has to be positioned.
We position it "relative" but don't move it from its natural position.
*/
section#hasposition {
position: relative;
}
The term "absolute" is tricky to learn ... the element being positioned is given an absolute position within its container, in a sense it's positioned relative to its container... but what position:relative means is relative to its own natural position, so it's easy to get confused at first over whether you want absolute or relative positioning.
Putting it all together, we have some basic HTML that represents major portions of a page — a real page will have far more, but those should be contained within some top-level containers. This shows only those top-level containers.
Then we have some javascript that will add the new element at the appropriate time. Here I just call the function to add it after a delay created with setTimeout(). I'm using full-on jQuery since you're using some in your example, and it makes the javascript more portable and more concise.
function ShowSessionTimeoutStyled() {
var styler = $('<div>').addClass('messagebox').addClass('positioned');
styler.html('<span class="message">The Session Timed Out</span>');
$('#hasposition .above').after(styler);
}
// wait 6 seconds then add the new div
setTimeout(ShowSessionTimeoutStyled, 6000);
div.messagebox {
font-size: 16px;
width: auto;
height: auto;
top: 20%;
left: 20%;
background-color: white;
border: 2px solid black;
}
div.messagebox .message {
color: red;
font-style: italic;
font-weight: bold;
}
div.messagebox.positioned {
position: absolute;
width: 40%;
padding: 1.5em;
}
section#hasposition {
position: relative;
}
/* also style some of the basic parts so you can see them better in the demonstration */
section.explanation {
margin: 1em 0.5em;
padding: 0.5em;
border: 1px solid gray;
}
.demonstration {
margin-left: 1em;
padding: 1em;
background-color: #e0e0e0;
}
.demonstration .above {
background-color: #fff0f0;
}
.demonstration .middle {
background-color: #f0fff0;
}
.demonstration .below {
background-color: #f0f0ff;
}
.demonstration footer {
background-color: white;
}
p {
margin-top: 0;
padding-top: 0;
}
section {
font-family: sans-serif;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<section class="explanation">
<p>Here, a div is added dynamically, after the "basic part above", but the added div is <em>positioned</em>. You can see the other content isn't affected.</p>
<section class="demonstration" id="hasposition">
<div class="above">Basic part above</div>
<div class="middle">Middle part</div>
<div class="below">Part Below</div>
<footer>This is the page footer</footer>
</section>
</section>
I highly recommend the site Position Is Everything for articles and tutorials on positioning. Some of its other content is outdated — who needs to make PNGs to do drop-shadows any more? — but the way positioning works hasn't changed.

javascript div not expanding to match dynamic form fields

I have two divs that have been coded using javascript so that the "lightpole" div will expand to match the height of the "LayoutColumn2" div. It seems to be working fine everywhere except on the checkout page. This page has some dynamic form elements that expand once one section is completed. The lightpole div does not expand to match the expanded divs that container forms, even though they are within the larger LayoutColumn2 div.
Site: https://store-e262c.mybigcommerce.com/checkout.php?tk=eceb5394b7c03ae4a283b2eabff8f9f6
If that doesnt work add something to the cart>proceed to checkout>Select I'm a new Customer, Continue button. The lightpole break is visible near the footer and very apparent if you continue through the checkout process. I can delete users if someone wanted to create a test user.
<!--make lightPole expand to height of tallest column-->
<script type="text/javascript">
$(window).load(function(){
var ht=($('#LayoutColumn2').height() > $('#LayoutColumn3').height()) ?
$('#LayoutColumn2').height() : $('#LayoutColumn3').height(); $('#lightPole').height(ht); }); </script>
The html is lengthy and changes depending on the stage in the checkout process but I can still post it if someone wants it.
CSS
#lightPole {
background:url(../images/lightPole8aSlice.png);
margin: 0 0 0 19.9px;
padding: 0;
position: absolute;
width: 15px;
z-index: -100;
display: inline-block;
float: left;
}
#LayoutColumn2{
float: left;
height: auto;
margin: 0;
padding: 0;
width: 641px;
}
.Content {
background: url("../images/contentMiddleBackground.png") repeat scroll 0 0 transparent;
float: left;
font-size: 0.95em;
margin: 0;
min-height: 266.5px;
padding: 0 5px 0 28px;
width: 609px;
}
It's nested pretty deeply and there are several other script blocks in there so maybe one of those is causing the problem...?
Your issue is imho to resize the div(#lighPole) when the other div(#LayoutColumn2) changes its height. This can be archived e.g. using the jquery resize plugin.
<script type="text/javascript" src="/content/jquery.ba-resize.min.js"></script>
<script type="text/javascript">
$(function() {
$('#LayoutColumn2').resize(function() {
var ht = Math.max($('#LayoutColumn2').height(), $('#LayoutColumn3').height());
$('#lightPole').height(ht);
}).resize();
});
</script>

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