Speculative password import prompt crash fix #1072
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Please review the release process for BrowserServicesKit [here](https://app.asana.com/0/1200194497630846/1200837094583426). **Required**: Task/Issue URL: https://app.asana.com/0/1203822806345703/1208648341254407/f iOS PR: duckduckgo/iOS#3569 macOS PR: duckduckgo/macos-browser#3542 What kind of version bump will this require?: Patch **Description**: There's a crash in moderate numbers which is occurring during the password import prompt flow. This is speculative fix for that. The reason seemed to be that the `replyHandler` was being called too many times. However: - The docs for `userContentController:didReceiveScriptMessage:replyHandler:` say " The replyHandler can be called at most once. If the replyHandler is deallocated before it is called, the Promise will be rejected with a JavaScript Error object with an appropriate message indicating the handler was never called." - In the case of `startCredentialsImportFlow` where the crash is occurring, the JS is not awaiting. So there is no need to call the replyHandler. **Steps to test this PR**: Just smoke tests for the feature: https://app.asana.com/0/1142021229838617/1208543152554655/f **OS Testing**: * [ ] iOS 14 * [ ] iOS 15 * [ ] iOS 16 * [ ] macOS 10.15 * [ ] macOS 11 * [ ] macOS 12 --- ###### Internal references: [Software Engineering Expectations](https://app.asana.com/0/59792373528535/199064865822552) [Technical Design Template](https://app.asana.com/0/59792373528535/184709971311943)
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Please review the release process for BrowserServicesKit here.
Required:
Task/Issue URL: https://app.asana.com/0/1203822806345703/1208648341254407/f
iOS PR: duckduckgo/iOS#3569
macOS PR: duckduckgo/macos-browser#3542
What kind of version bump will this require?: Patch
Description:
There's a crash in moderate numbers which is occurring during the password import prompt flow. This is speculative fix for that.
The reason seemed to be that the
replyHandlerwas being called too many times. However:userContentController:didReceiveScriptMessage:replyHandler:say " The replyHandler can be called at most once. If the replyHandler is deallocated before it is called, the Promise will be rejected with a JavaScript Error objectwith an appropriate message indicating the handler was never called."
startCredentialsImportFlowwhere the crash is occurring, the JS is not awaiting. So there is no need to call the replyHandler.Steps to test this PR:
Just smoke tests for the feature:
https://app.asana.com/0/1142021229838617/1208543152554655/f
OS Testing:
Internal references:
Software Engineering Expectations
Technical Design Template