I am attempting to hide an element loaded in an iFrame using CSS/jQuery/Javascript. The iFrame content is located on a different domain. I am trying to hide a button on the page loaded inside the iFrame. The buttons HTML is:
<a href="/Communication" id="lbtnMessage" class="bsrpBlueButtonLink">
<div class="NavButtonMess">
<span>Messages</span>
</div>
</a>
I have read mixed answers around the Internet on whether or not this is possible. I just need to be able to hide this block of code in the iFrame source. I this at all possible?
One possible solution is to use postMessage, obviously you need to control both domains.
This jquery plugin handles it pretty well : http://benalman.com/projects/jquery-postmessage-plugin/
If you don't control both domains then, due to security this is impossible. All you can do, is resizing / hiding the iframe.
Related
I know to hide a div on a website if I have the source control. I can set div display to none or call javascript hide() on the div id. But how can I permanently remove a div from a website for which I don't have a source control. Just for my rendering, if I load or refresh the page, I should see that div gone. Are there any basic work around or hacks for that? I don't want to inspect and set display none for div every time I refresh the website.
Have a look at Tampermonkey for Chrome
or Greasemonkey for Firefox
You might use a (somewhat weird :) construct: build your own HTML document, containing only:
an <iframe src="---your external page--->"
a <script> where you explicitly add style="display: none;" to all elements where you need it
Browser (Chrome in my example) extensions has needed functionality.
You can use Custom JavaScript for websites extension, and configure additional code execution for every page reload without opening DevTools.
I have an AngularJS application which runs under an iframe in a different website. I have the code of the website.
I need to open a new iframe to the same AngularJS application but to a different route. I don't want to load all the application again in the new iframe. I am looking for something that will duplicate existing instance of a window content, or maybe open a new iframe of the same application without loading the whole app again.
Here is the code explanation:
I have this html page:
<div>
<iframe src="www.myapp.com/books"></iframe>
</div>
www.myapp.com/books is an AngularJS application so it loads a lot of dependencies, execute a lot of code and make a few backend calls. I want to add a button that it's click will open another iframe to the html page:
<div>
<iframe src="www.myapp.com/books"></iframe>
<iframe src="www.myapp.com/names"></iframe>
</div>
The new iframe will open the same app but different route. Unfortunately this will cause a full loading of the application for the same iframe, and I am looking for a way to prevent this. Like cloning the same instance of the iframe and route to the new location without a full reload..
Any idea?
Lets talk JQuery on this one.
Say you have your nice iframe (iframes aren't actually very nice) element
<iframe id="original" src="www.myapp.com/books"></iframe>
take note of the id tag.
then you got your javascript, enclosed in tags
var newIframe = $("#original").clone();
$("body").append(newIframe);
LINK ---> Check this all out at JSFiddle <--- LINK!
The best thing to do is probably write the html/javascript/css of your application as text in the second iframe.
You can get the contents of the first iframe
page=$("#iframe1")).contents().find("html").html();
and then set it to your second iframe
var doc = parent.$("#iframe2")[0].documentElement;
doc.open();
doc.write(html);
doc.close();
You may not want to do a full copy like this, but I think this is a starting point.
I think it's mandatory that your application resides on the same domain of the website hosting it, or this will fail for cross-domain scripting security reasons. You would have to change the design of the whole thing if so, since you cannot manipulate an iframe on a different domain.
Information taken from How to insert html in iframe and Getting the html content of an iframe using jQuery
EDIT
What you want is probably not iframes. You can load the javascript for your application once in the main webpage. Then that javascript should download (or create) html elements, and inject them into a div. Doing so, the javascript for your application can manage as many subframes you want. The downside is that you must probably change a lot your application: now it is designed to be loaded as a webpage, and should be rewritten to be a js that manages some divs putting content into them. I don't see another solution, unfortunately.
I want to allow any page to be loaded inside an iframe. It's for teaching purposes so I want to know if it's possible to force let's say:
<iframe src="http://www.wolframalpha.com/input/?i=5*sin%28x%29" width="400" height="100">
to stay inside the iframe. By default it has some kind of javascript that opens in full page.
UPDATE: What if i use frames? (please don't throw bricks at me) Could they know if the page is inside a frame?
If the page itself wants to break out of being framed with it's own javascript (which apparently this page is doing), it can do so and I know of no way to prevent it other than turning javascript off in your own browser which obviously isn't an option for general viewing.
On some browsers, you can set an attribute on the iframe element that sets a security policy that prevents the iframe from executing JavaScript. I don't remember the attribute name and not sure which browsers support it (I'm sure ie does, not quite sure about the others). If you have problem finding more details, I'll look it up when I get home (on a mobile right now)
edit: found it - security="restricted". Seems to be IE-only.
If you have links outside of this iFrame and want them to load into that iFrame on the same page, you'll have to give it a name, then target the named iFrame within your link's href.
<iframe src="http://google.com" name="myframe" hieght="100" width="100"></iframe>
<br />
Derp.
However, if you're loading a page into your iFrame that's loading links with target="blank", then those will go to a new window; unless you don't have access to those pages, you won't be able to change the links (short of writing JS to dive into your iFrame, etc).
I'm interested in linking to or embedding an external page, scrolling to a specific point. Is this possible, or do cross-browser securities prevent it?
One workaround I've considered is creating the iframe within a div, giving the iframe a negative margin and then overflow:hidden; the container div.
Thanks.
A possible solution could be to use JavaScript to scroll the page. However, if the page you are embedding is on a different domain, you cannot access its content with JavaScript if it is in an iframe (due to the same origin policy). However, if it is on the same domain as the host page, you should be able to access it using JavaScript and then scroll using the window.scrollTo(x,y) method or similar (see this page on MDN).
Also, if the page you are embedding has a named anchor (<a name="blah">) or a block-level element with a specific id (<div id="blah">) at the point you want to scroll to, you can link to it or embed it by using a URL such as http://example.com/page#blah and it will scroll to blah automatically. This is not under the same-origin policy, so you can do something like <iframe src="http://example.com/page#blah"></iframe> and the frame will automatically be scrolled to blah, even if it is not on the same domain as the host.
The "iframe with negative margin" solution you mentioned could work, but that might be hard to implement and would probably cause problems, especially if you want full cross-browser compatibility.
Is it possible to build a Firefox extension that displays a floating, persistent iFrame over the page content?
I know it's possible to add iFrames using XUL. For instance, you can add an iFrame to a persistent sidebar. However, I want the iFrame to float over the page content, not cause the content to shrink. So far, my only option is to add the iFrame to the DOM, then use CSS "fixed" positioning to float the iFrame.
The iFrame must also persist across page loads, exactly as the sidebar does. Adding an iFrame to the DOM, unfortunately, causes the iFrame to vanish when the browser renders a new page (e.g., after clicking a link).
Any clues?
Thanks!
Another add-on you can look at is Shopping Helper It has an iframe at the bottom whenever the page is displayed a product
Yes. I was able to do this by setting the attribute noautohide in the panel you use.
E.g.
<panel id="yourOverlay" noautohide="true">
You might be able to do something like this with Greasemonkey, it allows you to customize how web pages look and you could make your script available to others.