Loading webassembly dlls is a lot slower after updating Cypress V13.3.0 to V13.3.1

[MelvinBaaijAviva]

Current behavior

In our application we are generating and previewing pdf's and for this purpose we are using Webassembly .
I updated Cypress from V13.3.0 to V13.3.1
Getting the dll's needed from Webassembly takes a lot longer than before (on my local environment it takes 2000ms (V13.3.1) per dll instead of 500ms in V13.3.0)
(using chrome browser V118.0.5993.70 )

Desired behavior

Updating to a higher version should not impact the performance of loading the Webassembly dlls

Test code to reproduce

No specific test code to reproduce upgrading and downgrading from the stated versions results in the behaviour

Cypress Version

13.3.1

Node version

v16.20.0

Operating System

Windows 10 Enterprise 10.0.1904b Build 19045

Debug Logs

example with Cypress V13.3.0 getting some of these dlls:

GET /js/wasm/managed/System.Threading.Thread.dll 304 563.580 ms - -
GET /js/wasm/managed/System.Threading.ThreadPool.dll 304 563.870 ms - -
GET /js/wasm/managed/System.Threading.Timer.dll 304 564.543 ms - -
GET /js/wasm/managed/System.Threading.dll 304 562.591 ms - -

example with Cypress V13.3.1 getting same dlls:
GET /js/wasm/managed/System.Threading.Thread.dll 304 2049.957 ms - -
GET /js/wasm/managed/System.Threading.ThreadPool.dll 304 2066.895 ms - -
GET /js/wasm/managed/System.Threading.Timer.dll 304 2062.693 ms - -
GET /js/wasm/managed/System.Threading.dll 304 2063.532 ms - -

Other

No response

[ryanthemanuel]

Hi @MelvinBaaijAviva. Thanks for logging this. We inadvertently introduced a performance regression for this specific scenario as a result of fixing another bug in our proxy correlation logic (see #28056 ). We are currently looking into a fix.

[ryanthemanuel]

@MelvinBaaijAviva we are working on a patch release for this. Note that this may end up making the requests even faster than they were previously (i.e. faster than 500 ms)

[MelvinBaaijAviva]

@ryanthemanuel
Thanks for solving this. I'm not at the office at the moment. Will try it next week and report back if needed.

[cypress-bot]

Released in 13.3.2.

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Cypress v13.3.2, please open a new issue.