Example for getting the exception
b2.docx (application/vnd.openxmlformats-officedocument.wordprocessingml.document), 8.86 KB, created by NadavB on 2019-02-06 11:41:34 UTC
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Creator: NadavB
Created: 2019-02-06 11:41:34 UTC
Size: 8.86 KB

Attachment is not viewable in your browser because its MIME type (application/vnd.openxmlformats-officedocument.wordprocessingml.document) is not one that your browser is able to display.

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Attachments on bug 63149: 36425