1898952 - digits.t-mobile.com - Firefox is not a recommended browser

Status: ASSIGNED

(Web Compatibility :: Site Reports, defect, P1)

Description

[Ksenia Berezina [:ksenia]]

Environment:
Operating system: Linux
Originally reported Firefox version: Firefox 111.0
Last reproduced with the following UA: Mozilla/5.0 (X11; Linux x86_64; rv:126.0) Gecko/20100101 Firefox/126.0
Platforms reproduced on: windows,mac,linux,android

Steps to reproduce:
The site claims it wont work in Firefox, doesn't let me log in until I switch my user agent to Chrome

Actual Behavior:
Browser unsupported

Created from https://github.com/webcompat/web-bugs/issues/119767

Comment 1

[Thomas Wisniewski [:twisniewski]]

This is the code they're using to sniff the UA:

    t.supportBrowser = function () {
      if (c()) return !0;
      if (r && !r.mobile) {
        const e = r.brands;
        if (e.length > 0) for (const t of e) if (['Google Chrome',
        'Microsoft Edge'].includes(t.brand)) return !0
      }
      return !1
    },

And predictably, r is undefined, because:

const r = navigator.userAgentData;

So we need to spoof userAgentData to have Google Chrome or Microsoft Edge in its brands.

Comment 2

[Thomas Wisniewski [:twisniewski]]

Attachment: Bug 1898952 - Add JS intervention for digits.t-mobile.com; r=denschub

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/b0d68e2ff13e
Add JS intervention for digits.t-mobile.com; r=denschub,webcompat-reviewers

Comment 4

[Cosmin Sabou [:CosminS]]

https://hg.mozilla.org/mozilla-central/rev/b0d68e2ff13e