TypeError: t.observe is not a function. (In 't.observe(l,{characterData:!0})', 't.observe' is undefined)

[IvanAbadzhiev]

Hi, I am using your library, and when some user with Safari: 11 ~ 12 visit my website, my code crash with this error

TypeError: t.observe is not a function. (In 't.observe(l,{characterData:!0})', 't.observe' is undefined)

{"columnNumber":21,"lineNumber":144,"fileName":"webpack:///node_modules/asap/browser-raw.js","functionName":"makeRequestCallFromMutationObserver"}

[kriskowal]

That would suggest that somehow MutationObserver or WebKitMutationObserver does not implement observe. ASAP will not use mutation observers if they do not exist on the global. However, Safari has supported mutation observers over that version range.

https://caniuse.com/?search=MutationObserver

Is it possible WebPack has corrupted the function? Can we see a gist of the surrounding text?

Any help at all would be useful. I have not needed to actively maintain this package in five years.

[kriskowal]

Does anyone watching this project have a moment to attempt to isolate and reproduce?