showProbePlaceholders

[matzfan]

Hi

When I export NoScript's options (from Tor Browser) I see this setting. What does it do/mean? Also, I am working with a headless browser application (also TB) and do not see this setting in my exported options file in my test environment (Docker) - is this to be expected?

Many thanks.

[Giorgio Maone]

It's NoScript Options>Appearance>Show synthetic placeholders for invisible capability probes, which makes NoScript show visible placeholders for elements (like webgl canvases or svg objects) which are created off-screen by scripts in the page to check whether the capability is available and never actually displayed once the script detects that it's blocked.