LinkPresentation framework crashing Mac app

Question

Created Aug ’19

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The LinkPresentation framework, specifically using LPMetadataProvider, makes my app crash after calling -startFetchingMetadataForURL:completionHandler: and before calling the completionHandler, suggesting it's a bug within the framework, not my app.

Crashes in ***:WebKit something on macOS. On iOS, the framework performs nicely.

Answered by m.gansrigler in 639178022

I've been told by Apple (via rdar) that LinkPresentation must be used on the main thread. That's why it crashed in my case.

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Answer 1

m.gansrigler OP

Aug ’19

seems to only happen in an XPC service, not within the main app, for some reason.

1

Answer 2

fysteven OP

Nov ’19

This problem happens to me in an iOS share extension. I haven't tried the main app.

1

Answer 3

m.gansrigler OP

Oct ’20

Accepted Answer

I've been told by Apple (via rdar) that LinkPresentation must be used on the main thread. That's why it crashed in my case.

2