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Editorial Team
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Asked: 2026-05-16T14:53:28+00:00

I have an iframe from an external source. I want to alter it (with

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I have an iframe from an external source. I want to alter it (with javascript) so all links are opened with another absolute URL. I’m assuming the best approach is to modify the base property (element)

For example, assuming I embed stackoverflow.com as:
<iframe src="http://stackoverflow.com"/>

I want that when a user clicks the links, for example <a id="nav-askquestion" href="/questions/ask">Ask Question</a>, they will be opened in http://mysite.com, for example http://mysite.com/questions/ask

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1 Answer

  1. Editorial Team

    This is entirely impossible due to the Same Origin Policy.

    You would have to fetch the external HTML page using a proxy script on your local server. There is no other way of gaining access to the page’s links or setting a base property.

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