How to enable code view in browser?

Question

Google Chrome

Hello.
Guys. The other day, viewing the code in the browser turned off. Yandex and Google.
Keyboard shortcuts don't help. Right mouse button too.
Here is the screen prntscr.com/9a7beh
What should I do, otherwise I'm without it like without hands?

Answer 1

How did you do it? Maybe you have some special plugins in your browser? Try turning them off.

Answer 2

It would be nice to specify the OS.
For Windows, check the DeveloperToolsDisabled key in Software\Policies\Chromium or something like that. If there is, delete