Removed features are displayed as deprecated
fearures.json of Chrome includes "Object.observe" with -
"impl_status_chrome": "Removed"
However, https://developer.microsoft.com/en-us/microsoft-edge/platform/status/objectobserve shows it as deprecated, which is misleading because -
- People use deprecated features all of the time, so they might try that.
- It might give people some hope that it might actually come to other browsers, since it is still "a functioning feature".
It might give people some hope that it might actually come to other browsers, since it is still "a functioning feature".
I have never seen a deprecated spec being implemented in any browser.
I do not remember an exact example, but I remember there were such unfortunate cases (a deprecation was overturned because another browser implemented it).
(And it is not a deprecated specification, it was never in a specification, so you can call it a de-facto or a proprietary feature and the list of those that were brought into other browsers is quite large)