Safely reviving shared memory (Mozilla Hacks)
The Mozilla Hacks blog coverssome recent Firefox changes that will allow code from web sites to useshared memory and high-resolution timers in a (hopefully) safe manner."Together with others in the WHATWG community, we designed a set of headers that meet these requirements.The Cross-Origin-Opener-Policy header allows you to process-isolateyourself from attackers. It also has the desirable effect that attackerscannot have access to your global object if they were to open you in apopup. This prevents XS-Leaks and various navigation attacks. Adopt thisheader even if you have no intention of using shared memory!"