Feature Request. Defeat or Spoof the "fontHack" screen detection method

[lizatoj]

Hello.

Great addon, nice work!

I found a bug - the spoofing of the window size is not working.

version from github: 0.9.4.3
Firefox: 31.3 esr

How to test:

1. Set a random window size in RAM
2. Check if that works here: ip-check.info (really good free site to check your privacy)

Result:
Window size cannot be set by RAM

[dillbyrne]

Hello @lizatoj Thanks for your bug report and your support. I am aware of this issue. Currently RAS spoofs the screen size by presenting spoofed javascript values to the site which then queries them and takes the spoofed results as if they are the real values. It used to work on that site in the past.

What is happening now in the case of this site is that it uses a "fontHack" to get the screen size and not the spoofed javascript values we are presenting . I am still looking for a way to block or spoof the "fontHack". I have not had a chance to properly look into it because I have been so busy but I plan to. If you happen to know a way to defeat it please let me know and I will add it.