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POHTML5 Resize top-level document iframe from inside a nested iframe
 

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    <p>The problem may seem hard to understand, so I will illustrate it as best I can.</p> <p>Say I have the following index.html body:</p> <pre><code>&lt;iframe name="parent"&gt;&lt;/iframe&gt; </code></pre> <p>And inside the <code>parent</code> iframe, I load the following page body:</p> <pre><code>&lt;iframe name="nested-navigation"&gt;&lt;/iframe&gt; &lt;iframe name="nested-parent"&gt;&lt;/iframe&gt; </code></pre> <p>And inside <code>nested-parent</code> iframe, I load another page. Inside this other page, I need to somehow get to the top-level (index.html) documents <code>parent</code> iframe, so that I can resize the height of its contents using the <code>nested-parent</code> iframe content size. </p> <p>I correctly resize the index.html's <code>parent</code> iframes height using the loaded contents of the nested pages body. However, in the next nesting, I am unable to reach the <code>index.html</code> document context, and thus am unable to get the <code>parent</code> iframe element.</p> <p>I need help on figuring out how to reach the index.html's <code>parent</code> iframe. How would I do this?</p> <p>The page is online and the effects can be viewed here:</p> <p>www.ngeneersinc.com</p> <p>If you click the <code>Projects</code> navigation link, it will correctly load the page and resize the <code>parent</code> iframe. Sadly, when you click on the <code>Ngen</code> navigation link inside this nested page, the top-level (index.html) iframe (<code>parent</code>) does not get resized and the content is cut to whatever the height was set to in the previous page.</p> <p>EDIT:</p> <p>Essentially, I am trying to do the following in my javascript function:</p> <pre><code>var e = document.getElementById("nested-parent").contentWindow; // which is OK var x = e.contentWindow; // which is 'undefined' because I lost the context of the index.html document </code></pre>
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