✨ [RUM-3837] Force replay recording on sampled out sessions

[N-Boutaib]

Motivation

Allow session replay recording on sampled out sessions

Changes

On the RUM's public API, session replay recording can be forced even if the session is sampled out for replay. This is achieved by passing { force: true } to DD_RUM.startSessionReplayRecording function.

When this method is called with force option, we need to keep recording until the session ends. To achieve that:

• A new tracking type is added
• The cookie is updated to reflect that change, with the new tracking type
• Session cache and history context are synchronised across all tabs

Testing

• [x] Local
• [x] Staging
• [x] Unit
• [x] End to end

---

I have gone over the contributing documentation.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 97.72727% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 93.28%. Comparing base (5249c39) to head (b7323fc). Report is 8 commits behind head on main.

Files	Patch %	Lines
packages/rum-core/src/domain/rumSessionManager.ts	85.71%	1 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2684      +/-   ##
==========================================
+ Coverage   93.26%   93.28%   +0.01%     
==========================================
  Files         241      241              
  Lines        7028     7057      +29     
  Branches     1553     1569      +16     
==========================================
+ Hits         6555     6583      +28     
- Misses        473      474       +1     

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[cit-pr-commenter[bot]]

Bundles Sizes Evolution

📦 Bundle Name	Base Size	Local Size	𝚫	𝚫%	Status
Rum	157.47 KiB	158.10 KiB	643 B	+0.40%	✅
Logs	56.09 KiB	56.40 KiB	319 B	+0.56%	✅
Rum Slim	103.96 KiB	104.51 KiB	563 B	+0.53%	✅
Worker	25.21 KiB	25.21 KiB	0 B	0.00%	✅

🚀 CPU Performance

Action Name	Base Average Cpu Time (ms)	Local Average Cpu Time (ms)	𝚫
adderror	0.031	0.032	0.001
addaction	0.016	0.015	-0.001
logmessage	0.005	0.006	0.001
startview	0.920	0.848	-0.072
startstopsessionreplayrecording	1.017	0.762	-0.255
addtiming	0.001	0.001	-0.000
addglobalcontext	0.001	0.001	-0.000