✨ [RUM-16925] attach debug IDs from DD_SOURCE_CODE_CONTEXT to error and long task events

[amortemousque]

Motivation

Part of the sourcemap unminification project. When a Datadog bundler plugin is used, it injects DD_SOURCE_CODE_CONTEXT on the window with per-bundle metadata (service, version, debug ID). This PR makes the RUM SDK read the ddDebugId field from that context and attach it to error and long task events as _dd.debug_ids, enabling the backend to correlate events with uploaded sourcemaps.

Changes

• Move sourceCodeContext from browser-rum-core to browser-core so both the error pipeline and the RUM assembly layer can access it
• Rename the MFE-specific context hook to sourceCodeMfeContext (clearer scope)
• In computeRawError: resolve debug_ids by looking up all stack frame URLs in DD_SOURCE_CODE_CONTEXT and attach them as _dd.debug_ids on error events
• In longTaskCollection: same lookup on script.sourceURL for Long Animation Frame events
• Export getDebugIds and getSourceCodeContext from @datadog/browser-core

Test instructions

1. Set window.DD_SOURCE_CODE_CONTEXT with a stack entry whose top-frame URL matches a script URL on the page and a ddDebugId value
2. Trigger an error or long task from that script
3. Verify the intake event has _dd.debug_ids: { [scriptUrl]: debugId }

The E2E tests cover both flows automatically (yarn test:e2e -g "debug ID").

Checklist

• Tested locally
• Tested on staging
• Added unit tests for this change.
• Added e2e/integration tests for this change.
• Updated documentation and/or relevant AGENTS.md file

[datadog-datadog-prod-us1-2]

 

✨ Fix all issues with BitsAI

⚠️ Warnings

🚦 7 Pipeline jobs failed

DataDog/browser-sdk | e2e: [chromium-pinned]     

🧪 2 Tests failed

microfrontend › RUM debug_id attribution › errors from console.error should have debug_id from source code context from microfrontend.scenario.ts  

expect(received).toHaveLength(expected)

[chromium-pinned] › microfrontend.scenario.ts:434:15 › microfrontend › RUM debug_id attribution › errors from console.error should have debug_id from source code context 

    Error: expect(received).toHaveLength(expected)

    Expected length: 2
    Received length: 1
    Received array:  [{"_dd": {"configuration": {"profiling_sample_rate": 0, "session_replay_sample_rate": 100, "session_sample_rate": 100, "trace_sample_rate": 100}, "drift": 0, "format_version": 2, "sdk_name": "rum"}, "action": {"id": ["0cd6531e-b5fc-4fb3-90f2-ca469b424ec8", "6ad118bd-4879-4457-b4d9-29125ba571ce"]}, "application": {"id": "37fe52bf-b3d5-4ac7-ad9b-44882d479ec8"}, "connectivity": {"effective_type": "4g", "status": "connected"}, "context": {"handlingStack": "HandlingStack: console error
      at HTMLButtonElement.<anonymous> @ http://172.28.224.205:9250/microfrontend/chunks/__federation_expose_app1-b2c0695cc05141242e6b-app1.js:64:17", "run_id": "1793386671", "test_name": "microfrontend.scenario.ts > microfrontend > RUM debug_id attribution > errors from console.error should have debug_id from source code context"}, "date": 1782158095225, "ddtags": "sdk_version:dev,service:main-service,version:1.0.0", "display": {"viewport": {"height": 720, "width": 1280}}, "error": {"handling": "handled", "handling_stack": "HandlingStack: console error
...

microfrontend › RUM debug_id attribution › runtime errors should have debug_id from source code context from microfrontend.scenario.ts  

expect(received).toBeDefined()

[chromium-pinned] › microfrontend.scenario.ts:449:15 › microfrontend › RUM debug_id attribution › runtime errors should have debug_id from source code context 

    Error: expect(received).toBeDefined()

    Received: undefined

      456 |
      457 |         expect(intakeRegistry.rumErrorEvents).toHaveLength(2)
...

DataDog/browser-sdk | e2e: [firefox]     

🧪 2 Tests failed

microfrontend › RUM debug_id attribution › errors from console.error should have debug_id from source code context from microfrontend.scenario.ts  

expect(received).toHaveLength(expected)

[firefox] › microfrontend.scenario.ts:434:15 › microfrontend › RUM debug_id attribution › errors from console.error should have debug_id from source code context 

    Error: expect(received).toHaveLength(expected)

    Expected length: 2
    Received length: 1
    Received array:  [{"_dd": {"configuration": {"profiling_sample_rate": 0, "session_replay_sample_rate": 100, "session_sample_rate": 100, "trace_sample_rate": 100}, "drift": -1, "format_version": 2, "sdk_name": "rum"}, "action": {"id": ["9262229e-1124-4630-a317-c8b9acdb5fa3", "9c4e7966-8331-482f-9a2d-246136e996be"]}, "application": {"id": "37fe52bf-b3d5-4ac7-ad9b-44882d479ec8"}, "connectivity": {"status": "connected"}, "context": {"handlingStack": "HandlingStack: console error
      at ./common.ts/createApp/< @ http://172.28.195.94:9364/microfrontend/chunks/__federation_expose_app1-b2c0695cc05141242e6b-app1.js:64:17
...

microfrontend › RUM debug_id attribution › runtime errors should have debug_id from source code context from microfrontend.scenario.ts  

expect(received).toBeDefined()

[firefox] › microfrontend.scenario.ts:449:15 › microfrontend › RUM debug_id attribution › runtime errors should have debug_id from source code context 

    Error: expect(received).toBeDefined()

    Received: undefined

      456 |
      457 |         expect(intakeRegistry.rumErrorEvents).toHaveLength(2)
...

DataDog/browser-sdk | e2e: [webkit-pinned]     

🧪 2 Tests failed

microfrontend › RUM debug_id attribution › errors from console.error should have debug_id from source code context from microfrontend.scenario.ts  

expect(received).toHaveLength(expected)

[webkit-pinned] › microfrontend.scenario.ts:434:15 › microfrontend › RUM debug_id attribution › errors from console.error should have debug_id from source code context 

    Error: expect(received).toHaveLength(expected)

    Expected length: 2
    Received length: 0
    Received array:  []

...

microfrontend › RUM debug_id attribution › runtime errors should have debug_id from source code context from microfrontend.scenario.ts  

expect(received).toBeDefined()

[webkit-pinned] › microfrontend.scenario.ts:449:15 › microfrontend › RUM debug_id attribution › runtime errors should have debug_id from source code context 

    Error: expect(received).toBeDefined()

    Received: undefined

      456 |
      457 |         expect(intakeRegistry.rumErrorEvents).toHaveLength(2)
...

View all 7 failed jobs.

ℹ️ Info

No other issues found (see more)

❄️ No new flaky tests detected

🎯 Code Coverage (details)
• Patch Coverage: 80.77%
• Overall Coverage: 76.92% (+0.06%)

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[cit-pr-commenter-54b7da]

Bundles Sizes Evolution

📦 Bundle Name	Base Size	Local Size	𝚫	𝚫%	Status
Rum	172.46 KiB	172.84 KiB	+381 B	+0.22%	✅
Rum Profiler	8.22 KiB	8.22 KiB	0 B	0.00%	✅
Rum Recorder	21.09 KiB	21.09 KiB	0 B	0.00%	✅
Logs	54.47 KiB	54.90 KiB	+443 B	+0.79%	✅
Rum Slim	129.97 KiB	130.25 KiB	+288 B	+0.22%	✅
Worker	22.96 KiB	22.96 KiB	0 B	0.00%	✅