Steps to reproduce the problem:
I know this is by design. As usual, a stupidly wrong design choice.

1. browse some web in incognito mode on Android
2. try to take a screenshot

What is the expected behavior?
Should take the screenshot

What went wrong?
Chrome doesn't allow it.

This is fucking stupid. How is this supposed to "protect the user's privacy"?

At least add a setting for whether or not to allow screenshots in incognito mode, if you really believe this idiotic privacy-protecting feature is of any use.

Did this work before? Yes 

Chrome version: 65  Channel: stable
OS Version: 
Flash Version: