Capture Future errors for Flutter Web automatically

[marandaneto]

📜 Description

Capture Future errors for Flutter Web automatically

💡 Motivation and Context

flutter/flutter#100277 (comment)

💚 How did you test it?

Running Flutter Web and non-Web, throwing Future errors, and checking the error handlers.

📝 Checklist

• I reviewed submitted code
• I added tests to verify changes
• I updated the docs if needed
• All tests passing
• No breaking changes

🔮 Next steps

[marandaneto]

Not really needed anymore, people are used to scrolling down and reading all the available context.

[github-actions]

Android Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	321.51 ms	371.43 ms	49.92 ms
Size	5.94 MiB	6.96 MiB	1.02 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
559d28f	302.35 ms	339.53 ms	37.18 ms
453e1bc	320.41 ms	372.73 ms	52.32 ms
0db91cc	327.85 ms	387.31 ms	59.46 ms
72dfc83	298.62 ms	340.14 ms	41.52 ms
abcdba3	354.68 ms	399.04 ms	44.36 ms
633cf2e	289.36 ms	340.38 ms	51.02 ms
613760b	373.42 ms	399.33 ms	25.92 ms
f4cc744	349.53 ms	394.68 ms	45.15 ms
870f5eb	329.45 ms	369.29 ms	39.84 ms
379d7a8	327.10 ms	355.39 ms	28.29 ms

App size

Revision	Plain	With Sentry	Diff
559d28f	5.94 MiB	6.92 MiB	1001.70 KiB
453e1bc	5.94 MiB	6.95 MiB	1.01 MiB
0db91cc	5.94 MiB	6.95 MiB	1.01 MiB
72dfc83	5.94 MiB	6.92 MiB	1001.71 KiB
abcdba3	5.94 MiB	6.95 MiB	1.01 MiB
633cf2e	5.94 MiB	6.92 MiB	1001.53 KiB
613760b	5.94 MiB	6.92 MiB	1005.98 KiB
f4cc744	5.94 MiB	6.95 MiB	1.01 MiB
870f5eb	5.94 MiB	6.92 MiB	1005.77 KiB
379d7a8	5.94 MiB	6.95 MiB	1.01 MiB

Previous results on branch: fix/future-web

Startup times

Revision	Plain	With Sentry	Diff
4e40541	287.58 ms	337.76 ms	50.17 ms

App size

Revision	Plain	With Sentry	Diff
4e40541	5.94 MiB	6.96 MiB	1.02 MiB

[github-actions]

iOS Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1265.22 ms	1281.06 ms	15.84 ms
Size	8.16 MiB	9.17 MiB	1.01 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
49a149b	1296.47 ms	1320.20 ms	23.73 ms
f922f8f	1249.53 ms	1266.51 ms	16.98 ms
3e5ee37	1248.25 ms	1265.38 ms	17.13 ms
aed5947	1268.67 ms	1281.10 ms	12.43 ms
f4cc744	1274.57 ms	1290.79 ms	16.22 ms
3e9fb0e	1262.49 ms	1280.65 ms	18.16 ms
633cf2e	1257.96 ms	1275.73 ms	17.77 ms
abcdba3	1257.31 ms	1283.49 ms	26.18 ms
48e79fd	1282.96 ms	1296.12 ms	13.17 ms
a609134	1254.50 ms	1265.08 ms	10.58 ms

App size

Revision	Plain	With Sentry	Diff
49a149b	8.15 MiB	9.12 MiB	986.26 KiB
f922f8f	8.15 MiB	9.13 MiB	1003.20 KiB
3e5ee37	8.15 MiB	9.12 MiB	986.23 KiB
aed5947	8.16 MiB	9.17 MiB	1.01 MiB
f4cc744	8.16 MiB	9.16 MiB	1.01 MiB
3e9fb0e	8.15 MiB	9.12 MiB	989.77 KiB
633cf2e	8.15 MiB	9.12 MiB	986.26 KiB
abcdba3	8.15 MiB	9.12 MiB	989.76 KiB
48e79fd	8.16 MiB	9.15 MiB	1021.87 KiB
a609134	8.16 MiB	9.16 MiB	1.01 MiB

Previous results on branch: fix/future-web

Startup times

Revision	Plain	With Sentry	Diff
4e40541	1261.43 ms	1268.12 ms	6.69 ms

App size

Revision	Plain	With Sentry	Diff
4e40541	8.16 MiB	9.17 MiB	1.01 MiB

[marandaneto]

@ueman are you aware of this problem?
@denrase do you remember if you tested the new error handler on Web?

[marandaneto]

@krystofwoldrich or @brustolin would love a review here.

[brustolin]

LGTM