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MIME types handled wrong

admin
web-app

Hi all,

I have this issue on Win 2008 R2 / IIS 7.5

When I try to open an Attachment (.docx) it opens correctly in Word 2010 using IE9, FF9, Chrome. When using FF8 or Opera 11 it opens as XML (FF) or as RAR (Opera). On IIS the configuration is correct (default), for .docx MIME type is set to 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'.

For testing I set it to 'application/x-zip-compressed', to force the browser to open it like a zip. No effect. IE9 and FF9 still open with Word.

Do you have any suggestion how to fix this?

thx in advance
dawolf
· 1 		dawolf
Wednesday, December 21, 2011, 2:11:29 PM
Replies (4)
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Short update, a colleague of mine investigated in the same direction. To us now it looks like Gemini itself is serving the request but not the IIS. Is that correct? How can we make Gemini serve .docx (and other similar formats) correctly?
dawolf
· 1 		dawolf
Wednesday, December 21, 2011, 2:33:18 PM
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Seems like an issue with FF 8 or Opera 11 as the other versions work fine. Can you try it on our site: http://gemini.countersoft.com
Mark Wing
· 9108 		Mark Wing
Wednesday, December 21, 2011, 2:43:47 PM
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It is the same on your site. I uploaded a dummy docx on: http://gemini.countersoft.com/issue/ViewIssue.aspx?id=4903&PROJID=3

Same result: Opera opens it as zipped file, while FF9 and IE9 recognize it as Word file.

We compared what Gemini is sending in the Header as Content-Type, to what other Web Apps (e.g. Trac) are sending. Gemini sends nothing, while others send: application/octet-stream; charset=iso-8859-15 or even the proper variant: application/vnd.openxmlformats-officedocument.wordprocessingml.document

So, afaik, when browser dont receive a Content-Type they start kind of educated guessing. This would explain why it opens as zipped for or as xml document. As docx is not much more but compressed xml files.

Is it possible to change this, to make Gemini send the proper Content-Type?
dawolf
· 1 		dawolf
Wednesday, December 21, 2011, 3:03:11 PM
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ANSWER

TICKET »  GEM-4904: Download doesn't set the content type


Mark Wing
· 9108 		Mark Wing
Thursday, December 22, 2011, 2:05:06 PM