[Bug 48367] New: MiFlashUnlock 3.5.1128.45: Does not display login screen

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48367

Bug ID: 48367
           Summary: MiFlashUnlock 3.5.1128.45: Does not display login
                    screen
           Product: Wine
           Version: 5.0-rc2
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 66110
  --> https://bugs.winehq.org/attachment.cgi?id=66110
backtrace provided by "Program Error" dialog

Hello!

I'm using wine-5.0-rc2(devel) on Debian 10. I'm trying to unlock the bootloader
of my Mi phone using MiFlashUnlock 3.5.1128.45 tool.

MiFlashUnlock 3.5.1128.45 Download link:
http://miuirom.xiaomi.com/rom/u1106245679/3.5.1128.45/miflash_unlock-en-3.5....
$ sha1sum miflash_unlock-en-3.5.1128.45.zip
ffcd4c0400ce4607ddf66e39958ebb88d9431eb1  miflash_unlock-en-3.5.1128.45.zip
$ sha1sum miflash_unlock.exe
714d25cb3bea6b55fdb8e440fd1405202be11711  miflash_unlock.exe

Whenever I try to run the miflash_unlock.exe with wine, a "Program Error"
dialog pops up (screenshot attached: wine-1.png). Also attached the backtrace
log (backtrace.txt) provided by that pop up dialog. Also linked the terminal
o/p until this point of execution. (wine-terminal-1.txt)

Then, if I close that dialog and click on "Agree", the application window hangs
(wine-2.png) and does nothing. Also linked the terminal o/p after clicking
"Agree". (wine-terminal-2.txt). Then I have to close the application by ctrl-c
on terminal or clicking x on the hanged application window.

Expected behavior:
I expected to see the login screen (crossover-1.png) after clicking on "Agree".
Crossover 19.0.0-1 throws the similar "Program Error" dialog couple of times
but after closing them and clicking on "Agree" shows the login screen.

Since, the issue is with web login screen may be the fault lies somewhere in
gecko? Please note that I let it install wine-gecko automatically when I was
asked while setting wineprefix the first time. Also since crossover shows the
login screen may be they have fixed it?

Anyways, please look into it.

Thanks!

wine-1.png: https://i.imgur.com/5JlK0h1.png
backtrace.txt: https://pastebin.com/raw/azTHEH7G (attached)
wine-terminal-1.txt: https://pastebin.com/raw/LVn6hGiS

wine-2.png: https://i.imgur.com/N3Ru0BS.png
wine-terminal-2.png: https://pastebin.com/raw/TTXELvTm

crossover-1.png: https://i.imgur.com/DaA6p9E.png