
"Uncaught (in promise)": why your async error disappears from the console
The difference between a thrown exception and an unhandled promise rejection, why a surrounding try/catch sometimes doesn't help, and how to catch async errors correctly.
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The difference between a thrown exception and an unhandled promise rejection, why a surrounding try/catch sometimes doesn't help, and how to catch async errors correctly.

How to use AbortController and AbortSignal to cancel fetch requests and other async operations, avoiding race conditions and wasted network calls.