OK, I've used the addon User-Agent Switcher which fixed this.

Please close the thread.

Hi,

I'm running Opera 25 on Windows 8.1.U1 x64 and having the mentioned problem. Some websites open surprisingly in mobile view while they are supposed to open in desktop view. The same link opens fine in either IE, Firefox, or Chrome. Once Opera receives the link, it automatically assume mobile and switch the link.

I think it may be issues with the websites themselves rather than Opera. That is, the developer assumed Opera agent to be only mobile. Can I do anything to change agent and fake the website?

One example of this is this website: http://www.yalla-shoot.com/

Regards,
Ahmed

I'd like to test this, would you mind giving some examples of such websites with issues?