I was trying to enter 4 double-dots in relative URL in tinymce like this
https://drive.google.com/open?id=1Z1d535wEoRS4RbNdm6y7Z6wcEmBB12nE
but it get reset to 3 double-dots, like this.
https://drive.google.com/open?id=1AhmLvxhIY-Kj6xujPFDwXXWbOLHxd0qj
Any idea why?
I solved the issue by setting "convert_urls: false" in tinymce.yml file for configuration. Make sure to restart server