TextMetrics test

Expected result

  1. the hashes are different to the hashes when CanvasBlocker is disabled
  2. the number of differences stays the same when CanvasBlocker is disabled
  3. if "refresh" is clicked nothing must change
  4. upon page reload the hashes change (depending on CanvasBlocker settings - e.g. not in the stealth preset)
  5. Firefox 68 does only offer integer precision in TextMetrics and therefore less fingerprinting potential. CanvasBlocker only changes values if they are no integer and therefore point 1 and 4 are not true in Firefox 68.




Number of differences: