💥 [RUM 6075] Save anonymous id in session cookie

[cy-moi]

Motivation

Test saving anonymous id in session cookie on org2.

Changes

Add anonymous id to session cookie behind a feature flag.

Testing

• Local
• Staging
• Unit
• End to end

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I have gone over the contributing documentation.

[cit-pr-commenter]

Bundles Sizes Evolution

📦 Bundle Name	Base Size	Local Size	𝚫	𝚫%	Status
Rum	152.01 KiB	152.52 KiB	521 B	+0.33%	✅
Logs	50.80 KiB	51.24 KiB	452 B	+0.87%	✅
Rum Slim	102.21 KiB	102.72 KiB	521 B	+0.50%	✅
Worker	25.16 KiB	25.16 KiB	0 B	0.00%	✅

🚀 CPU Performance

Action Name	Base Average Cpu Time (ms)	Local Average Cpu Time (ms)	𝚫
addglobalcontext	0.001	0.004	0.003
addaction	0.032	0.152	0.119
addtiming	0.001	0.002	0.000
adderror	0.039	0.158	0.119
startstopsessionreplayrecording	1.103	2.345	1.242
startview	1.168	4.240	3.072
logmessage	0.021	0.055	0.034

🧠 Memory Performance

Action Name	Base Consumption Memory (bytes)	Local Consumption Memory (bytes)	𝚫 (bytes)
addglobalcontext	7.58 KiB	7.23 KiB	-357 B
addaction	37.72 KiB	38.05 KiB	338 B
addtiming	6.72 KiB	6.27 KiB	-455 B
adderror	43.16 KiB	41.06 KiB	-2149 B
startstopsessionreplayrecording	3.74 KiB	5.31 KiB	1.57 KiB
startview	404.95 KiB	405.31 KiB	367 B
logmessage	39.23 KiB	39.07 KiB	-158 B

🔗 RealWorld

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.63%. Comparing base (746252d) to head (03fcf95).
Report is 50 commits behind head on v6.

Additional details and impacted files

@@            Coverage Diff             @@
##               v6    #2985      +/-   ##
==========================================
+ Coverage   93.61%   93.63%   +0.01%     
==========================================
  Files         279      280       +1     
  Lines        7473     7491      +18     
  Branches     1690     1702      +12     
==========================================
+ Hits         6996     7014      +18     
  Misses        477      477              

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[BenoitZugmeyer]

💬 suggestion: ‏a bit related to my previous comment, but we should probably be able to do something like:

Suggested change

	commonContext.user.anonymous_id = retrieveAnonymousId(type)
	commonContext.user.anonymous_id = session.getAnonymousUserId()