I've problems with reCaptcha, it's implemented as following ...
<head>
<script>
var widget_register;
var onloadCallback = function () {
widget_register = grecaptcha.render('form_recaptcha', {
'sitekey': 'my-own-sitekey'
});
};
</script>
</head>
<script>
function setCaptcha(captcha) {
app.captcha_response = captcha;
}
</script>
<form id="recaptcha" class="design_recaptcha" action="javascript:setCaptcha(grecaptcha.getResponse(widget_register));">
<div id="form_recaptcha"></div>
<input type="submit" hidden/>
</form>
<script src="https://www.google.com/recaptcha/api.js onload=onloadCallback&render=explicit" async defer>
</script>
<paper-button id="register">Register</paper-button>
When the button with the "register" id is clicked, in my javascript the following code is executed.
$('#recaptcha').submit();
Then the function setCaptcha is executed, which gets the reCaptcha response-code as following. You find this code above in the form action tag.
action="javascript:setCaptcha(grecaptcha.getResponse(widget_register));"
The captcha response is then saved to a variable in my app.js.
This setup works in chrome, opera and egde browser. Only browser which it doesn't work is firefox.
Somebody has the same problem? or a solution for me? thx :)
Use an onsubmit attribute rather than in the action tag which is really meant for the post url:
onsubmit="setCaptcha(grecaptcha.getResponse(widget_register)); return false"
If you want the form to actually submit, which I don't think you do in this case, return true instead of false.
Related
I am using a third party software which uses the Prototype library. It was working fine before the latest update (Ver 68 and above) of Firefox. It is still working in the other browsers. I tried debugging and whenever I introduce a breakpoint and go step by step the code works. I found the following line of code which if I step over and let the code run the problem is solved. But if I let the code run before this the problem occurs.
return formView.submit();
Any idea? I am ok with a hack even.
Update:
I created a MRE as suggested. Here is the link https://brandsoftinfotech.com/test/firefox-frame-submit/
I have created 2 forms, one in the parent page and one in the frame. On submitting the parent page form the frame page form gets submitted and writes the data in a log file. And the form page when submitted just shows the data from that log file.
index.html
<!DOCTYPE html>
<html>
<head>
<script>
function submitFunction() {
var myFrame = document.getElementById("myFrame");
var myForm = myFrame.contentWindow.document.getElementById("myForm");
myForm.submit();
}
</script>
</head>
<body>
<form action="index-submit.php" onSubmit="submitFunction()">
<input type="submit" value="Submit">
</form>
<iframe id="myFrame" src="frame-box.html"></iframe>
</body>
</html>
frame-box.html
<form action="frame-submit.php" id="myForm">
First name:<br>
<input type="text" name="firstname" value="Mickey"><br>
Last name:<br>
<input type="text" name="lastname" value="Mouse"><br><br>
</form>
This works fine on Chrome, MS Edge but doesn't work on Firefox.
I am not sure if solving this would solve my problem, but at least this should work for my library code to work.
I'm mildly surprised to see that it works on any browser. By allowing the parent's form submission to occur, you're tearing down the page, which means tearing down the iframe, and any requests that may be underway can be aborted (or if not quite started, never started).
I'd probably switch to ajax rather than doing the actual form submission.
But if you want to do the form submission, to do this reliably you'll have to wait for the frame's submission to complete before doing the parent submission. The easy way to do that is to have the frame submission respond with a small page with JavaScript on it that tells the parent it's finish:
<!DOCTYPE html>
<html>
<body>
<script>
if (parent && parent.formCallback) {
parent.formCallback();
}
</script>
</body>
</html>
Then the parent page is something like:
<!DOCTYPE html>
<html>
<head>
<script>
function submitFunction() {
var myFrame = document.getElementById("myFrame");
var myForm = myFrame.contentWindow.document.getElementById("myForm");
myForm.submit();
return false; // <−−−−−−−− cancel submission
}
function formCallback() { //
document.getElementById("parentForm").submit(); // <−−−−−−−− Submit on callback
} //
</script>
</head>
<body>
<!-- vvvvvvvvvvvvvvv−−−−−−−− Added ID -->
<form id="parentForm" action="/index-submit" onSubmit="return submitFunction()">
<input type="hidden" name="index-field" value="x">
<input type="submit" value="Submit">
</form>
<iframe id="myFrame" src="frame-box.html"></iframe>
</body>
</html>
But you may get away with just detecting the change in location in the iframe. That would involve just changing the parent page as indicated:
<!DOCTYPE html>
<html>
<head>
<script>
function submitFunction(form) { // <−−−−−−−− Added parameter
var myFrame = document.getElementById("myFrame");
var myForm = myFrame.contentWindow.document.getElementById("myForm");
myForm.submit();
// Wait for the location of the iframe window to change
setInterval(function() {
if (String(myFrame.contentWindow.location).includes("frame-submit")) {
// Frame's form submitted, we can submit ours
form.submit();
}
}, 100);
return false; // <−−−−−−−− cancel submission
}
</script>
</head>
<body>
<form action="/index-submit" onSubmit="return submitFunction(this)">
<!-- ^^^^−−−−−−−−− added argument -->
<input type="hidden" name="index-field" value="x">
<input type="submit" value="Submit">
</form>
<iframe id="myFrame" src="frame-box.html"></iframe>
</body>
</html>
I wouldn't expect that to work if the form in the frame does a significant upload (though I could be wrong about that).
I have a situation where I need to open a new tab to an external site when the user clicks "submit" on a form, and at the same time I need to redirect the original tab to a different page to prevent the user making multiple duplicate requests to the external site.
NOTE: I have protected against this behaviour in the back-end, I just want to use JavaScript to improve the UX where possible, removing the rendering of the option in the first place.
NOTE2: This works in Firefox, but not in Chrome or Safari.
Some example code which illustrates my issue is shown below:
<script type="text/javascript">
function testFunction(){
alert("Executing testFunction()!");
window.location.replace("http://www.google.com");
}
// uncomment this line to show that testFunction() does work when called directly
//testFunction();
</script>
<html>
<head>
<title>JS Redirect Then Post Test</title>
</head>
<body>
<form action="" method="POST" target="_blank">
First name: <input type="text" name="firstname"><br>
Last name: <input type="text" name="lastname"><br><br>
<input type="submit" value="Submit" onclick="testFunction()">
</form>
</body>
</html>
When I click submit, I observe the alert popping up, but the redirect does not execute.
If I uncomment the line which calls testFunction() directly, it works as expected.
How can I get the behaviour I'm looking for?
This is what I managed to come up with after a bit of tinkering around. You can pass the click event from onclick into your handler function. If you let the event happen, it will just submit the form and prevent all following execution, that is why I stopped the original click event with preventDefault and triggered form.submit() programmatically.
Also notice how I wrapped the redirect inside a setTimeout to give time to the submit() to actually happen before the redirect.
<html>
<head>
<script type="text/javascript">
function testFunction(e) {
e.preventDefault();
e.target.parentNode.submit();
alert("Executing testFunction()!");
setTimeout(function() {
document.location.href = "http://www.google.com";
}, 0);
}
// uncomment this line to show that testFunction() does work when called directly
// testFunction();
</script>
<title>JS Redirect Then Post Test</title>
</head>
<body>
<form action="" method="POST" target="_blank">
First name: <input type="text" name="firstname"><br> Last name: <input type="text" name="lastname"><br><br>
<input type="submit" value="Submit" onclick="testFunction(event)">
</form>
</body>
</html>
I'm having problem with the following code,
The submit button is not binding to the jQuery script and the console is not printing anything. I can't figure out what the problem is..
<html>
<head>
<script src="//ajax.aspnetcdn.com/ajax/jQuery/jquery-1.12.2.min.js"></script>
</head>
<body>
<script>
// Variable to hold request
var request;
// Bind to the submit event of our form
$("#show").submit(function(event){
console.log ("Im here");
});
</script>
<!--form action="getVehiclePosition.php" method="GET"-->
<!--Name: <input type="text" name="name"><br>-->
<form id="show">
<input type="submit" value="Send">
</form>
</body>
</html>
You code is not working as at the time the script is interpreted and executed, the form does not exist in the DOM. Wrap your code in document-ready handler.
Specify a function to execute when the DOM is fully loaded.
Use
$(function () {
//Your code
})
OR, You can place the script tag below the form element
It is a silly mistake and the only thing that you have to change is to wrap the whole code in $(document).ready(function(){}); .
The updated code is :
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<body>
<script>
$(document).ready(function(){
var request;
$("#show").submit(function(event){
console.log ("Im here");
});
});
</script>
<!--form action="getVehiclePosition.php" method="GET"-->
<!--Name: <input type="text" name="name"><br>-->
<form id="show">
<input type="submit" value="Send">
</form>
</body>
May be you can modify id form to "show123" and run again. if it's work => duplicate id show in page.
Glad help for you.
I need to find a way for a page to redirect you to a third party page with a login form and log in for you. Need to use it on a screen that can access pages but cant input anything to said page.
I've managed to create a html file that takes me to the page;
<html>
<head>
<script type="text/javascript" language="JavaScript">
window.onload = function() {
window.location.href = 'www.URL.com';
};
</script>
</head>
</html>
I have also figured out that if I paste the following in to the address field after opening the page it logs me in;
javascript:void(document.loginForm.name.value = 'MYUSERNAME');
javascript:void(document.loginForm.password.value = 'MYPASSWORD');
javascript:void(document.loginForm.submit())
I have not been able to combine the two though. Any thoughts?
Inspect the source of the form on the other site and look for the action attribute (probably something like action="/login/")
(also make an note of the method attribute)
Then make a form on your own page with the other sites action like this:
<form id="loginForm" action="http://othersite.com/login/" method="same as other site">
<input type=hidden name="name" value="MYUSERNAME"/>
<input type=hidden name="password" value="MYPASSWORD"/>
</form>
You can submit the form on page load with
<script>
window.onload = function() {
document.getElementById('loginForm').submit();
};
</script>
I'm starting to experiment with building Chrome extensions (first exposure to HTML and Javascript as well) and got stuck on a basic task. I have the popup.html file, which is what the user sees. What I'd like to do is have some placeholder text that is initially displayed to the user. The popup will also have a button so that when the user clicks on the button the placeholder text is replaced with something else.
Here is what I tested:
popup.html:
<!doctype html>
<html>
<head>
<title>Test Extension</title>
<script src="popup.js"></script>
</head>
<body>
<form id="testForm">
<input id="testButton" type="submit" value="testButton" />
</form>
<h3 id="textHeader">This will change.</h3>
</body>
</html>
popup.js:
function changeText() {
document.getElementById('textHeader').innerHTML = 'Changed!';
}
document.addEventListener('DOMContentLoaded', function () {
document.getElementById('testForm').addEventListener('submit', changeText);
});
When I debug the script, I see the initial addEventListener call which calls changeText and causes the text in the popup to change to 'Changed!'. However, I then see a second call of the addEventListener, which then reverts back to the original popup.html form. The net effect is that 'Changed!' only appears for a brief instant.
Is there a way to make changes to the HTML file in an event listener permanent to get the intended behavior? I realize that I really need to gain an understanding of the DOM model and how Javascript can interact with it in the browser. I'm looking for a book or some other resource to consult (the Mozilla Developer Network site looked like a good authoritative source, but seemed kind of sparse), but in the meantime was hoping to gain at least some additional understanding by working through this simple example. Thanks!
EDIT:
Thank you everyone for the prompt responses! Disabling the form submissions makes sense. I'm adding this edit to my question post because the original task I was trying to achieve did in fact need to make use of a form.
What I'm trying to do is take in input from the user through a form, query an external site (ex: Wikipedia) for the phrase that user typed in, and then display in the popup content that's taken from the query.
Here is a skeleton outline of what I attempted:
popup.html:
<!doctype html>
<html>
<head>
<title>Test Extension</title>
<script src="popup.js"></script>
</head>
<body>
<form id="WikipediaForm">
<input type="text" id="userQuery" size="50"/>
<input id="submitQuery" type="submit" value="Ask Wikipedia" />
</form>
<h3 id="WikipediaResponse">placeholder</h3>
</body>
</html>
popup.js:
function changeText() {
var req = new XMLHttpRequest();
askURL = 'http://en.wikipedia.org/wiki' + encodeURIComponent(document.getElementById('userQuery').value);
req.open("GET", askURL, false);
req.onload = function (e) {
if (req.readyState === 4) {
if (req.status === 200) {
document.getElementById('WikipediaResponse').innerHTML = req.responseText; // i'm just dumping everything for now
}
} else {
console.error(req.statusText);
}
}
};
req.send(null);
}
document.addEventListener('DOMContentLoaded', function () {
document.getElementById('WikipediaForm').addEventListener('submit', changeText);
});
This again also faces the same issue that I saw with the previous example where the response flashes for an instant before reverting back to the placeholder text. However, I can't follow the earlier answers now because I need the form to be submitted. What is the usual way of changing content in an event listener for a form?
On another note, I'm using the synchronous XMLHttpRequest call, which I know isn't recommend. But when I used the asynchronous call it didn't seem to go through and I couldn't figure out how to fix that, so that's another problem I'm also working on.
Use:
function changeText() {
document.getElementById('textHeader').innerHTML = 'Changed!';
//Returning false will prevent that the form submission completes
return false;
}
But if your form is never going to send data anywhere, you don't need a form at all (unless you're going to use a reset button for your fields). So you can just add type="button" to your element.
<body>
<input id="testButton" type="button" value="testButton" />
<h3 id="textHeader">This will change.</h3>
</body>
You need to return false from the event handler to prevent the normal form submission after the handler runs:
function changeText() {
document.getElementById('textHeader').innerHTML = 'Changed!';
return false;
}