Blink/Chromium forked because the fundamentally different process architecture, coupled with the huge cost in supporting a separate JS engine. Their big blog po

Blink/Chromium forked because the fundamentally different process architecture, coupled with the huge cost in supporting a separate JS engine. Their big blog post bragging about code size reduction was almost entirely removing code required to support JSC and Objective-C. Chromium/Blink will fundamentally never make any engine changes that support user privacy if that change will in anyway hurt their ad business. So the "standard open source HTML engine" now means the engine that supports the ad industry over users.