Opera randomly render a site using mobile agent

A Former User

He all,

I'm using Opera 43.0.2442.806 (PGO) on Windows 10 and I'm having this issue with some websites. Out of a sudden, Opera renders the website using mobile agent even though the website itself is launched in desktop mode. A refresh corrects the situation and load the desktop version instead.

I don't have any agent switcher extension installed. And although I don't have a comprehensive list of the affected sites, this one (http://www.youm7.com/) is affected often and switched on first load to (http://m.youm7.com/).

That behaviour does not exist with other popular browsers like Chrome or Firefox so I think I may drop the possibility of problems with the sites themselves.

Any idea? thanks.

sgunhouse

sgunhouse Moderator Volunteer

Opera is Chromium, so it is the site - or you have zoom set too high. (We had someone a couple of days ago who had accidentally set zoom to 500% and was getting a mobile version because they thought his screen was too small.)

A Former User

It is weird that Opera does this while Chrome does not since both use Chromium in the core. I just tried with latest Chrome and the same site loads fine.

Yes I do use zoom but not too high (120% on Opera vs 125% on Chrome) but still the issue persist on Opera only.

Thanks,

leocg

leocg Moderator Volunteer

It is weird that Opera does this while Chrome does not since both use Chromium in the core

It's usually the site treating Opera as a mobile browser.

BTW, http://www.youm7.com/ loads correctly here.

A Former User

It's usually the site treating Opera as a mobile browser.

That make sense, I will try using agent switchers and see ...

BTW, http://www.youm7.com/ loads correctly here.

It will not always do. Sometimes it will redirect to mobile site and so are other websites that I just encountered. Here's a record showing that same site switching: https://youtu.be/jAfky0KnRwQ