1305569 - Firefox 48 android uses native useragent instead of general.useragent.override value for icon

Status: RESOLVED DUPLICATE of bug 507641

(Firefox for Android Graveyard :: Favicon Handling, defect)

Description

[Bugfire Fozilla]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36
Build ID: 20160921204512
Firefox for Android

Steps to reproduce:

1. Added string 'General.useragent.override' to about:config, specified an arbitrary value on Android 4.1.2 and Firefox 48
2. Visit your website/web server and watch the server log
3. The last request for the icon from android is using the default user agent(Mozilla/5.0 (Android 4.1.2; Mobile; rv:48.0) Gecko/48.0 Firefox/48.0), instead of what I specified in 1

Please see the server log:

https://paste.debian.net/plain/842391/

HTML code where the logo is specified:

https://paste.debian.net/plain/842392

I'd say general.useragent.override is ignored when FF 48 sees:

< link rel="icon" href="value" / >


Actual results:

Useragent in the server log appears as the arbitrary string specified in 1.

Icon has been downloaded with the default useragent string.


Expected results:

Firefox should use the arbitrary string in general.useragent.override value.

Comment 1

[Kartikaya Gupta (email:[e-mail])]

Fetching the favicon is done from the Java code rather than using the gecko network stack which is probably why this happens. Not sure if we had a fix for it before and it regressed or if it was always this way.

Comment 2

[Kevin Brosnan [Ex-Mozilla]]

Sounds like bug 507641.

Comment 3

[Nevin Chen(Not active on Bugzilla)]

I guess Kartikaya is right.
I'd makr