Remove await for WASM platform.callEntryPoint
#31997
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HaoK
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mkArtakMSFT
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## Description Regression introduced via: #31769 * On Blazor Server, `Blazor.start` returns a promise that resolves when the .NET code starts up and the app becomes interactive * On WebAssembly: * Prior to #31769, `Blazor.start` behaves the same as server (the promise resolves when the app becomes interactive) * Since #31769, `Blazor.start` returns a promise that doesn’t resolve until the .NET app exits, which typically means never, and hence prevents its usage for triggering post-.NET startup logic This PR is meant to revert that specific bit of logic, so that we no longer await the `platform.callEntryPoint` function and thus `Blazor.start` returns a promise that resolves when the .NET code starts up and the app becomes interactive. This now matches the behavior from 6.0-preview3. ## Customer Impact Without this PR we inadvertently introduce a breaking change where the `Blazor.start` promise doesn't resolve until the .NET app exits. This prevents its usage for triggering post-.NET startup logic. ## Regression? - [x] Yes - [ ] No [If yes, specify the version the behavior has regressed from]: Regression from 6.0-preview3 Regressed by: #31769 ## Risk - [ ] High - [ ] Medium - [x] Low [Justify the selection above] Returning the `await` logic to what it was prior to #31769 which was introduced in Preview 4. ## Verification - [x] Manual (required) - [x] Automated: #31997 ## Packaging changes reviewed? - [ ] Yes - [ ] No - [x] N/A Addresses #31971
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3dots
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## Description Regression introduced via: #31769 * On Blazor Server, `Blazor.start` returns a promise that resolves when the .NET code starts up and the app becomes interactive * On WebAssembly: * Prior to #31769, `Blazor.start` behaves the same as server (the promise resolves when the app becomes interactive) * Since #31769, `Blazor.start` returns a promise that doesn’t resolve until the .NET app exits, which typically means never, and hence prevents its usage for triggering post-.NET startup logic This PR is meant to revert that specific bit of logic, so that we no longer await the `platform.callEntryPoint` function and thus `Blazor.start` returns a promise that resolves when the .NET code starts up and the app becomes interactive. This now matches the behavior from 6.0-preview3. ## Customer Impact Without this PR we inadvertently introduce a breaking change where the `Blazor.start` promise doesn't resolve until the .NET app exits. This prevents its usage for triggering post-.NET startup logic. ## Regression? - [x] Yes - [ ] No [If yes, specify the version the behavior has regressed from]: Regression from 6.0-preview3 Regressed by: #31769 ## Risk - [ ] High - [ ] Medium - [x] Low [Justify the selection above] Returning the `await` logic to what it was prior to dotnet/aspnetcore#31769 which was introduced in Preview 4. ## Verification - [x] Manual (required) - [x] Automated: dotnet/aspnetcore#31997 ## Packaging changes reviewed? - [ ] Yes - [ ] No - [x] N/A Addresses dotnet/aspnetcore#31971
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Also added an E2E test.
Addresses #31971
Insertion into preview 4: #31978