I am unable to get javascript to load in a page that contains an iframe. I deleted the iframe and it loads just fine.
Here is the relevant html:
<iframe id="iframe" src="Welcome.html" width=50% height=90% name="iframe"/>
</body>
<script type="text/javascript">
Fname = prompt("Please type in your first and Last name", " George Washington");
Fname = Fname + "";
iFrames are not defined like that
<iframe id="iframe" src="Welcome.html" width=50% height=90% name="iframe"/> No Frame Support </iframe>
Give that a go
Its implicitly closing the tag at the end, And the middle of an iframe is the no frame support
Your JS should be inside the body. I believe you also need a separate closing tag for the iframe.
Related
I want to popup iframe src(domain) when script load.
I code simple code but it does not working.
<html>
<title>Iframe load</title>
<iframe src="https://evil.com/" id="site" width="800px" heigth="700px"></iframe>
<script>
var siteD = document.getElementById("site");
alert(siteD);
</script>
</html>
When page load its only showing me [object HTMLIFrameElement]. But i want to show in popup evil.com from src. I hope you understand my question.
The cause: alert() wants to show a string, which is why it applies toString() to its parameter, and that does not render any of the properties of the object.
You need to use alert(siteD.src); instead:
var siteD = document.getElementById("site");
alert(siteD.src);
<iframe src="https://evil.com/" id="site" width="800px" heigth="700px"></iframe>
There's a simple answer to your question, siteD has a property src which you need to be alerting instead of siteD on its own.
Here is an example with src as property: https://codepen.io/dwaynehulsman/pen/rNxYYWQ
I want to remove iframe's content but keep the "iframe tag" unchanged
like:
<iframe>
<html>
...
</html>
</iframe>
change to
<iframe>
</iframe>
I tried this:
var frame_node = document.getElementsByTagName("iframe")[0];
frame_node.removeChild(frame_node.firstChild);
But I got an error: frame_node.firstChild is not an object
So how to do this?
thx
got the answer:
document.getElementsByTagName("iframe")[0].contentWindow.document.getElementsByTagName("html")[0].remove();
I am currently using Ace (http://ace.c9.io/) to take code from an editor and execute it within an iFrame. My issue is that when I add something along the lines of
Code in Editor
<script type="text/javascript">
window.onload = function() {
alert("hello");
}
</script>
to the head or body of the iFrame, the code is never executed. This is my current code:
Injecting Code into iFrame
$("#btnRun").click(function(event) {
event.preventDefault();
// iFrame with id="preview"
var preview = $("#preview").contents();
// Get code from editor and wrap in <script> tags
var script = "<script type='text/javascript'>" + ace.edit("js-editor").getSession().getValue() + "</script>";
// Append code to head or body, in this case head
preview.find("head").append(script);
});
The code is successfully added to the iFrame, however it is never executed. I can also successfully add HTML/CSS and it displays in the iFrame, but the javascript is never touched.
I have tried wrapping the code in script tags within the editor only, as well as using an escape character on the closing tag: "</script>" but to no avail.
This is the iFrame in my index.html document.
iFrame in index.html
<iframe class="editor" id="preview" name="result" sandbox="allow-forms allow-popups allow-scripts allow-same-origin" frameborder="0">
#document
<!-- Editor content goes here -->
</iframe>
After the code is injected the iFrame looks like this
iFrame with Injected Code
<iframe class="editor" id="preview" name="result" sandbox="allow-forms allow-popups allow-scripts allow-same-origin" frameborder="0">
#document
<html>
<head>
<script type="text/javascript">
window.onload = function() {
alert("hello");
}
</script>
</head>
<body>
</body>
</html>
</iframe>
Also when calling the window.onload or window.top.onload event from within the iFrame, the code executes but only affects the page containing the iFrame and not the contents of the iFrame itself.
Thank you.
Note: When the code is not within window.onload it runs fine. However I wish to be able to execute this code when the frame's onload function is executed.
I would think that you are adding the JS to the iframe after the onload event has already fired.
Perhaps you could try simulating an event to run the preview code or dispatching the onload event again?
Might help: https://developer.mozilla.org/en-US/docs/Web/API/Window.dispatchEvent
I was able to fix this myself. The problem was that appending the script to be within the iFrame wasn't enough to make it work. To make the script only be executed within the iFrames DOM was to write directly to it.
$("#btnRun").click(function(event) {
event.preventDefault();
var previewDoc = window.frames[0].document;
var css = ace.edit("css-editor").getSession().getValue();
var script = ace.edit("js-editor").getSession().getValue();
var html = ace.edit("html-editor").getSession().getValue();
previewDoc.write("<!DOCTYPE html>");
previewDoc.write("<html>");
previewDoc.write("<head>");
previewDoc.write("<style type='text/css'>" + css + "</style>");
previewDoc.write("<script type='text/javascript'>window.onload = function() {" + script + "}</script>");
previewDoc.write("</head>");
previewDoc.write("<body>");
previewDoc.write(html);
previewDoc.write("</body>");
previewDoc.write("</html>");
previewDoc.close();
});
I think it would be more elegant to use the contentDocument property of the iframe, and then inject the script and trigger the parser so it actually interprets it as JavaScript.
I put up a small proof of concept on github. I hope it solves your problem in a more elegant manner.
https://github.com/opreaadrian/iframe-injected-scripts
Cheers,
Adrian.
I'm trying to create an external link, that appears within the same site.
Here, If I click on a link it should display the contents of that link(external site) within our site. i.e., if my site is siteA and in that I place a link (to siteB) that will redirect to 'siteB' closing 'siteA'. I just want to avoid the situation besides I want to make the siteB to be opened within the siteA
My idea is when the link is opened, an iframe will be created and the external site will be opened within that Iframe.
Google
<script type="text/javascript">
function executeOnClick(){
<iframe name="your_frame_name" src="www.google.com" > </iframe>
return true;
}
</script>
I wrote this code, but couldn't get what I expect. I tried to use button, but it's not working.
Is there any other way to fix my issue..
No javascript is needed, use target attribute:
Load the page
<iframe id="iframe1"> </iframe>
JSFiddle
IMPORTANT: you cannot display http://google.com in iframes because of their X-Frame-Options. See: The X-Frame-Options response header
function executeOnClick(){
$('body').append('<iframe name="your_frame_name" src="www.google.com" height=200 width=200 > </iframe>');
return true;
}
try this
The iframe markup should not be inside your JavaScript function. That does nothing except throwing an exception. Put the markup below your anchor and change its src on click:
Google
<iframe id="targetFrame"></iframe>
<script>
function executeOnClick(target) {
document.getElementById("targetFrame").src = target.src;
return false;
}
</script>
In fact you don't even need JavaScript to do this. You can use the target attribute of the anchor and set it to be the name of the frame you want to open the page in:
Google
<iframe name="targetFrame" id="targetFrame"></iframe>
Change to this:
onclick="executeOnClick(this); return false;"
and do this in your funcition:
<script type="text/javascript">
function executeOnClick(elem){
var frame = '<iframe name="your_frame_name" src="'+ elem.getAttribute('href') +'" > </iframe>';
document.body.appendChild(frame); // <----append it here.
}
</script>
In your onclick function you have to return false; to stop the default behaviour of an anchor to take you to the another page.
please note that the google.com will not work with iframe
Google
<iframe id="targetFrame"></iframe>
<script>
function executeOnClick(src) {
document.getElementById("targetFrame").src =src;
}
</script>
<iframe src="www.google.com" height="400" width="551" frameborder="0" scrolling="no" runat="server"></iframe>
Use runat attribute too. Hope this works.
If doesn't, what's the error?
I am trying to iframe google.com i have tried dozens of combinations but the page keeps coming up blank.
<script type="text/javascript">
var urlPath=http://google.com;
document.write('<iframe scrolling="yes" height="350" width ="350" src="'+urlPath+'"><\/iframe>');
</script>
var urlPath='http://google.com';
Just fix the variable value.
Google does indeed not load in an iframe(same origin restriction) Google has different ways for adding their searchbox and/or search results to your website. (search for google api)
And to give an example to what I commented in the question:
And if you must use JavaScript instead of html to get the iframe in your page I would suggest using code like the following:
var iframe = document.createElement('iframe');
iframe.src='http://yahoo.com';
document.body.appendChild(iframe);
Your code has errors in it. See this jsFiddle http://jsfiddle.net/davew9999/JqHG9/
var urlPath = "http://www.google.com";
document.write('<iframe scrolling="yes" height="350" width ="350" src="' + urlPath + '"></iframe>');
Not sure why you are doing in in JavaScript you could just do
<iframe scrolling="yes" height="350" width ="350" src="http://www.google.com"></iframe>
One thing to note, http://www.google.com won't load in an iFrame, as mentioned in the comments by Greg Rozmarynowycz, Google don't allow you to load it in an iFrame that isn't hosted by Google. Change the src to http://www.amazon.com to see that the code works.