fix: Resolve issues with deprecated synchronous error handling and chained operators #5980
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…ained operators fixes ReactiveX#5979
cartant
approved these changes
Jan 26, 2021
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Adds some logic to handle the deprecated case. This is unfortunate, but it's necessary to properly support people who are still using this feature until we can remove it. Note that there is potentially a severe performance penalty for people using this feature. But they're being warned at every turn, and the migration path to get away from this is easy: Stop relying on synchronously thrown errors.
fixes #5979