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Firefox 8 displays source to nested iframes insead of the html

  • 4 replies
  • 5 have this problem
  • 7 views
  • Last reply by Bill

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I have had nested iframes for a few years, Firefox and other browsers display them without problems, but today with Firefox 8, I see the HTML source of the nested iframe. My test case had a Google Graph in it, but since it is only displaying the HTML, I am assuming the content is meaningless. I was about to create a test case, but I found my editor (tinymce) is also failing probably for the same reason.

I have had nested iframes for a few years, Firefox and other browsers display them without problems, but today with Firefox 8, I see the HTML source of the nested iframe. My test case had a Google Graph in it, but since it is only displaying the HTML, I am assuming the content is meaningless. I was about to create a test case, but I found my editor (tinymce) is also failing probably for the same reason.

Modified by Bill

Chosen solution

Looks like I answered my own question. The nested iframe did not have a header. Once I added my standard header, it worked. Firefox must be getting picker about headers in iframes.

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Chosen Solution

Looks like I answered my own question. The nested iframe did not have a header. Once I added my standard header, it worked. Firefox must be getting picker about headers in iframes.

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The server may not recognize the file extension if it is not .html and sends the file as text/plain.

Does that file have a .html file extension and is it send as text/html by the server?


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The iframe is not HTML, but cgi-bin with a Perl (.pl) extension. I noticed the standard header was missing (including the line in one of my previous posts), and after adding it in, it started working. I am in the process of moving my programs to Apache so I don't have to worry about headers, and let it handle all the front end stuff.

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Looks like the message where I answered myself is missing -- I added standard header mainly a blank line and a <!DOCTYPE ... > before the HTML.

Modified by Bill