bug#45179: qutebrowser stuck at Cloudflare 'browser checks'

["bdju" via Bug reports for GNU Guix <bug-guix@gnu.org>]

On Tue Dec 22, 2020 at 10:34 AM CST, Michael Rohleder wrote:
> Hello bdju,
>
> "bdju" <bdju@tilde.team> writes:
> > guix (GNU Guix) 91e35e32a4938e0e37499c64fa8ed3e7cf51dce3
> > some example sites with browser checks:
> > https://gitlab.com/users/sign_in
> > http://livechart.me/
> >
> > I already contacted the people in the qutebrowser IRC. The bug persists
> > when I launch with no config (`qutebrowser --temp-basedir'), and they
> > could not reproduce the issue on the same version of qutebrowser I'm
> > using. I suspect it may be an issue with the guix version.
> >
>
> A workaround is setting the "User Agent" string to something CF likes,
> e.g. like this:
> qutebrowser --temp-basedir --set content.headers.user_agent 'Mozilla/5.0
> (Windows NT 6.1; rv:60.0) Gecko/20100101 Firefox/60.0'
> https://gitlab.com/users/sign_in
>
> Maybe the reason why the (very helpful) #qutebrowser folks can't
> reproduce this, is because they use another qt version (qutebrowser uses
> qtwebengine) and perhaps this sets user agent to a string that CF has
> whitelisted.
>
> I don't think there is much we could do here (besides updating qt and
> mbakke has that in the pipeline, afaik).
>
> --
> COFFEE.EXE Missing - Insert Cup and Press Any Key
While I was able to bypass the cloudflare checks in IceCat with that
User Agent Switcher addon, I found I so far haven't been able to get
past them in qutebrowser by changing my useragent. I tried both your
example and copying one of the useragents generated by UAS in IceCat.
Still caught in a loop. (and I am using --temp-basedir as you said, so
shouldn't be my config)