Installation is not working for themes/extensions on AMO-dev

[ValentinaPC]

Steps to reproduce:

1. Load any theme/extensions details page on your Android device i.e. https://addons-dev.allizom.org/en-US/android/addon/shamrocks2/
2. Observe the install button

Expected results: The installation button is enabled.

Actual results: The installation button is disabled.

Notes/Issues:

• not reproducing on desktop while in Responsive Design Mode - View Mobile Site
• only reproducing on AMO-dev
• "tap to preview" button is not working also
• all prefs are set

Verified on FF53(Android 6.0.1, 7.1.2). Video for this issue:

[muffinresearch]

@ValentinaPC based on the version you're quoting this isn't nightly. Release doesn't allow the prefs for testing.

Please re-open if this is a problem on nightly.

[muffinresearch]

I'm going to re-open this because it suggests that something might be broken causing the fallback buttons not to be displayed.

[muffinresearch]

This is caused by Intl not being available on FF Android. See also https://bugzilla.mozilla.org/show_bug.cgi?id=1215247

ReferenceError: Intl is not defined

The fix will be to fallback to our previous solution for this case. It's apparently coming in 54.

[ValentinaPC]

Verified as fixed on AMO-dev FF53(Android 7.1.2). Installation is working for add-ons and themes. Postfix video:

[ValentinaPC]

This is happening again, together with mozilla/addons#10426 .

Also some other weird stuff:

• license is not a link
• log out button dos not work
• rating does not work either...

[ValentinaPC]

Was logged - mozilla/addons#10451