adlrb/telemetry prestart

[mormubis]

Motivation

Changes

Test instructions

Checklist

• Tested locally
• Tested on staging
• Added unit tests for this change.
• Added e2e/integration tests for this change.

[github-actions]

All contributors have signed the CLA ✍️ ✅
_{Posted by the CLA Assistant Lite bot.}

[datadog-official]

⚠️ Tests

✨ Fix all issues with Cursor

⚠️ Warnings

🧪 322 Tests failed

cookieObservable should notify observers on cookie change from Chrome Headless 139.0.0.0 (Linux 0.0.0) (Datadog) (Fix with Cursor)

Error: Jasmine Clock was unable to install over custom global timer functions. Is the clock already installed?
    at <Jasmine>
    at mockClock (/go/src/github.com/DataDog/browser-sdk/packages/core/test/emulate/mockClock.ts:12:9 <- /tmp/_karma_webpack_292493/commons.js:145588:19)
    at UserContext.<anonymous> (/go/src/github.com/DataDog/browser-sdk/packages/rum-core/src/browser/cookieObservable.spec.ts:18:22 <- /tmp/_karma_webpack_292493/commons.js:186968:86)
    at <Jasmine>

cookieObservable should notify observers on cookie change when cookieStore is not supported from Chrome Headless 139.0.0.0 (Linux 0.0.0) (Datadog) (Fix with Cursor)

Error: Jasmine Clock was unable to install over custom global timer functions. Is the clock already installed?
    at <Jasmine>
    at mockClock (/go/src/github.com/DataDog/browser-sdk/packages/core/test/emulate/mockClock.ts:12:9 <- /tmp/_karma_webpack_292493/commons.js:145588:19)
    at UserContext.<anonymous> (/go/src/github.com/DataDog/browser-sdk/packages/rum-core/src/browser/cookieObservable.spec.ts:18:22 <- /tmp/_karma_webpack_292493/commons.js:186968:86)
    at <Jasmine>

cookieObservable should not notify observers on cookie change when the cookie value as not changed when cookieStore is not supported from Chrome Headless 139.0.0.0 (Linux 0.0.0) (Datadog) (Fix with Cursor)

Error: Jasmine Clock was unable to install over custom global timer functions. Is the clock already installed?
    at <Jasmine>
    at mockClock (/go/src/github.com/DataDog/browser-sdk/packages/core/test/emulate/mockClock.ts:12:9 <- /tmp/_karma_webpack_292493/commons.js:145588:19)
    at UserContext.<anonymous> (/go/src/github.com/DataDog/browser-sdk/packages/rum-core/src/browser/cookieObservable.spec.ts:18:22 <- /tmp/_karma_webpack_292493/commons.js:186968:86)
    at <Jasmine>

View all

ℹ️ Info

❄️ No new flaky tests detected

🎯 Code Coverage
• Patch Coverage: 44.23%
• Overall Coverage: 73.84% (-3.50%)

View detailed report

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: 6244e33 | Docs | Datadog PR Page | Was this helpful? Give us feedback!}

[cit-pr-commenter-54b7da]

Bundles Sizes Evolution

📦 Bundle Name	Base Size	Local Size	𝚫	𝚫%	Status
Rum	165.78 KiB	167.90 KiB	+2.11 KiB	+1.27%	✅
Rum Profiler	4.33 KiB	4.33 KiB	0 B	0.00%	✅
Rum Recorder	24.48 KiB	24.48 KiB	0 B	0.00%	✅
Logs	56.21 KiB	56.35 KiB	+143 B	+0.25%	✅
Flagging	944 B	944 B	0 B	0.00%	✅
Rum Slim	123.05 KiB	124.98 KiB	+1.93 KiB	+1.57%	✅
Worker	23.63 KiB	23.63 KiB	0 B	0.00%	✅

🚀 CPU Performance

Action Name	Base CPU Time (ms)	Local CPU Time (ms)	𝚫%
addglobalcontext	N/A	0.0038	N/A
addaction	N/A	0.0183	N/A
adderror	N/A	0.0194	N/A
addtiming	N/A	0.0029	N/A
startview	N/A	0.0039	N/A
startstopsessionreplayrecording	N/A	0.0007	N/A
logmessage	N/A	0.0153	N/A

🧠 Memory Performance

Action Name	Base Memory Consumption	Local Memory Consumption	𝚫
addglobalcontext	N/A	33.32 KiB	N/A
addaction	N/A	55.93 KiB	N/A
addtiming	N/A	27.09 KiB	N/A
adderror	N/A	58.95 KiB	N/A
startstopsessionreplayrecording	N/A	30.48 KiB	N/A
startview	N/A	431.77 KiB	N/A
logmessage	N/A	45.54 KiB	N/A

🔗 RealWorld