[messaging] Running an app with the -O3 flags triggers an issue when getting a token

[Lyokone]

Description

When running an app in Debug mode (with -O0, so no optimizations), I get the token without any issues using tokenWithCompletion.

But when I'm running the app using -O3 (in Debug or Release mode), I get this error message

"Invalid fetch response, expected 'token' or 'Error' key"

First reported in firebase/flutterfire#10656

Reproducing the issue

Run tokenWithCompletion with the -O3 flag.

Firebase SDK Version

10.11

Xcode Version

14.3.1

Installation Method

CocoaPods

Firebase Product(s)

Messaging

Targeted Platforms

iOS

Relevant Log Output

"Invalid fetch response, expected 'token' or 'Error' key"

If using Swift Package Manager, the project's Package.resolved

Expand Package.resolved snippet

Replace this line with the contents of your Package.resolved.

If using CocoaPods, the project's Podfile.lock

Expand Podfile.lock snippet

Replace this line with the contents of your Podfile.lock!

[SkandarClubforce]

@Lyokone @aalej any update on this ?

[rizafran]

Sorry for the late revert, @Lyokone. First off, could you share a sample app that reproduces the issue to investigate?

[google-oss-bot]

Hey @Lyokone. We need more information to resolve this issue but there hasn't been an update in 5 weekdays. I'm marking the issue as stale and if there are no new updates in the next 5 days I will close it automatically.

If you have more information that will help us get to the bottom of this, just add a comment!

[jainmohit2001]

Hi @Lyokone , kindly expedite this process. We are not able to publish our iOS app due to the same issue.

[Lyokone]

@rizafran I was able to reproduce this issue using the sample app from the firebase-ios-sdk repository

[paulb777]

@aashishpatil-g @eldhosembabu Near the error message, there are references to replication delay issues that may be exposed when building with -O3. https://github.com/firebase/firebase-ios-sdk/blob/master/FirebaseMessaging/Sources/Token/FIRMessagingTokenFetchOperation.m#L150-L178. Would one of you take a look?