Can't login to facebook on mako #246

[Alan Pope 🍺🐧🐱 🦄]

I have my facebook account configured to prompt me when I login to facebook from a new browser.
I believe this is set in facebook -> settings -> security -> Login notifications. I have had this set for some time.

I can no longer login to facebook on my mako device running #246.
When I do, I get a normal dialog which tells me it's a new browser (I have always got this) - screenshot attached.
However after choosing "Save browser" (already selected) and then pressing "Continue" I get a dump of html. - Screenshot attached.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-system-settings-online-accounts 0.3+14.04.20140307.1-0ubuntu1
Uname: Linux 3.4.0-5-mako armv7l
ApportVersion: 2.13.3-0ubuntu1
Architecture: armhf
Date: Wed Mar 19 17:20:28 2014
InstallationDate: Installed on 2014-03-19 (0 days ago)
InstallationMedia: Ubuntu Trusty Tahr (development branch) - armhf (20140319)
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 SHELL=/bin/bash
SourcePackage: ubuntu-system-settings-online-accounts
UpgradeStatus: No upgrade log present (probably fresh install)

[Alberto Mardegan (mardy)]

The page which loads seems to be the correct one (I read "Ubuntu would like to post to facebook for you"), but maybe something is wrong with the HTML (or some HTTP header) and the browser doesn't recognize it. We didn't land any new version since a long time, and AFAIK also the browser component which we use wasn't updated.
Did this work before, Alan?

[Olivier Tilloy (osomon)]

I can think of two possible explanations:
 a) facebook changed something on their side, and they’re now sending this content with a content-type that QtWebKit thinks it should display as plain text
 b) our buggy UA override mechanism does not always send the correct UA, thus sometimes getting the right content type and sometimes not

… or a combination of both, maybe.

[Alan Pope 🍺🐧🐱 🦄 (popey)]

It's broken in the current stable image too. #237

It has worked in the past, but I can't tell you when it worked.

[Alan Pope 🍺🐧🐱 🦄 (popey)]

It's still broken in #250.

[Alan Pope 🍺🐧🐱 🦄 (popey)]

Still broken in #294.

[James Tait (jamestait)]

Still broken in #299.

[Jelmer Prins (justcarakas)]

Indeed, still broken in #299

[Adnane Belmadiaf (daker)]

Same as bug 1285971