How are the width and height of an iframe determined?

Is there a way to automate the resizing of content within an iframe based on its dimensions?

For example, in this code snippet, a box of 300px by 200px is randomly generated.

http://jsfiddle.net/fyaAR/

However, the actual content is equivalent to about 10 pages or 8.5 inches by (11*10) inches. Each page is 8.5 by 11 inches. While CSS can be used to set fixed dimensions, I want the iframe to adjust dynamically based on the content it holds.

Code Sample:

<div id="community">
  <div id = "community_outer"></div>
  <div id = "community_cover"></div>
  <iframe scrolling="no" id="community_frame" src="https://docs.google.com/document/d/1n9bsHIBk1KxGQTKgUF-NG6FRhb4LP0OHfmd4I50CFCU/pub" ></iframe>
</div>
htmlcss

Answer №1

Dealing with the challenge of inserting external APIs has been a recurring issue for me.

It's not as straightforward as one might think. The purpose of iFrames is to prevent security risks associated with AJAX calls and to showcase remote content.

As a result, your document will not inherit the CSS properties of the embedded content, making it difficult to seamlessly render it in full scale.

I recommend delving into the comments and the post referenced below:

Link to question 9162933

You'll likely need to utilize a script.

Copied Most Relevant Answer @Aristos

<script type="text/javascript">
  function iframeLoaded() {
      var iFrameID = document.getElementById('idIframe');
      if(iFrameID) {
            // here you can make the height, I delete it first, then I make it again
            iFrameID.height = "";
            iFrameID.height = iFrameID.contentWindow.document.body.scrollHeight + "px";
      }   
  }
</script>

Then HTML

<iframe id="idIframe" onload="iframeLoaded()" ...

Personally, I've always struggled with this issue, leading me to ultimately steer clear of iFrames, but there may be ways to make it work.

Consider utilizing one of Google's available APIs?

http://code.google.com/apis/ajax/playground/#news_show_via_iframe

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