548324 - [autoconfig] FetchHTTP should override MIME-Type of XML files

Status: RESOLVED WONTFIX

(Thunderbird :: Account Manager, defect)

Description

[Kohei Yoshino [:kohei]]

Attachment: patch v1

While live.mm.c/autoconfig is the only autoconfig server for now, fetchConfigFromISP() will be implemented in the feature (Bug 524045 Comment 17 says the target is 3.1). Every server can serve XML files as test/plain or application/octet-stream accidentally by mis-configuration (or sometimes purposely), so XMLHttpRequest used in FetchHTTP() should override the MIME-Type of the files to increase availability.

It also enables MozMill unit tests to load local configuration files, as I said in Bug 534604 Comment 14.

Comment 1

[Ben Bucksch (:BenB)]

I am intentionally only processing files serves with valid XML mimetype.
If the server is not set up properly, it should be fixed. Servers (e.g. Apache) are preconfigured correctly since many years, because the mimetype *is* important.

Note that MSIE used to ignore the mimetype and look for file extensions, and Mozilla used the mimetype. Nowadays, MSIE changed and looks at the mimetype, too. I try to say that the Mozilla project has a history of enforcing the mimetype.

I think this is WONTFIX.

Comment 2

[Ben Bucksch (:BenB)]

Indeed, seems to be solved by bug 534604 comment 19.