🐛 [RUM-6322] Use window.open observable

[nulrich]

Motivation

window.open instrumentation/de-instrumentation in actions collection is stacking instrumented method.

Changes

Instrument window.open only once when SDK is loading and use an observable to listen to calls.

Testing

• Local
• Staging
• Unit
• End to end

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I have gone over the contributing documentation.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 94.11765% with 1 line in your changes missing coverage. Please review.

Project coverage is 93.33%. Comparing base (518c07a) to head (cb8f7b0).

Files with missing lines	Patch %	Lines
...ges/rum-core/src/domain/action/actionCollection.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3215   +/-   ##
=======================================
  Coverage   93.33%   93.33%           
=======================================
  Files         286      287    +1     
  Lines        7771     7774    +3     
  Branches     1754     1754           
=======================================
+ Hits         7253     7256    +3     
  Misses        518      518           

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[cit-pr-commenter]

Bundles Sizes Evolution

📦 Bundle Name	Base Size	Local Size	𝚫	𝚫%	Status
Rum	163.22 KiB	163.37 KiB	158 B	+0.09%	✅
Logs	56.35 KiB	56.35 KiB	0 B	0.00%	✅
Rum Slim	111.80 KiB	111.96 KiB	158 B	+0.14%	✅
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
addglobalcontext	0.002	0.001	-0.001
addaction	0.053	0.031	-0.022
addtiming	0.001	0.001	-0.000
adderror	0.040	0.035	-0.005
startstopsessionreplayrecording	1.442	0.871	-0.571
startview	0.447	0.437	-0.011
logmessage	0.033	0.027	-0.006

🧠 Memory Performance

Action Name	Base Consumption Memory (bytes)	Local Consumption Memory (bytes)	𝚫 (bytes)
addglobalcontext	7.65 KiB	7.85 KiB	201 B
addaction	39.92 KiB	38.75 KiB	-1205 B
addtiming	8.42 KiB	6.31 KiB	-2157 B
adderror	46.76 KiB	44.82 KiB	-1992 B
startstopsessionreplayrecording	6.01 KiB	5.65 KiB	-373 B
startview	421.24 KiB	424.05 KiB	2.81 KiB
logmessage	40.86 KiB	41.01 KiB	156 B

🔗 RealWorld

[sethfowler-datadog]

LGTM! Some nits below:

[sethfowler-datadog]

Seems like we should link to a Jira ticket or something with the historical context around this issue.