[Bug]: Intermittent failure in the "Signature Editor Basic operations must check copy and paste" integration test

[timvandermeij]

Attach (recommended) or Link to PDF file

N/A

Web browser and its version

Firefox 136.0.1

Operating system and its version

Arch Linux

PDF.js version

5.0.375

Is the bug present in the latest PDF.js version?

Yes

Is a browser extension

No

Steps to reproduce the problem

I have noticed this integration test failing intermittently on especially the Windows bot a couple of times now. The most recent occurrence is in #19669. From http://54.193.163.58:8877/4ad1416cf0f063e/output.txt:

1) Signature Editor Basic operations must check copy and paste
  Message:
�[31m    ProtocolError: Waiting for selector `#pdfjs_internal_editor_1` failed: script.callFunction timed out. Increase the 'protocolTimeout' setting in launch/connect calls for a higher timeout if needed.�[0m
  Stack:
        at <instance_members_initializer> (file:///C:/pdfjs/botio-files-pdfjs/private/4ad1416cf0f063e/node_modules/puppeteer-core/lib/esm/puppeteer/common/CallbackRegistry.js:97:14)
        at new Callback (file:///C:/pdfjs/botio-files-pdfjs/private/4ad1416cf0f063e/node_modules/puppeteer-core/lib/esm/puppeteer/common/CallbackRegistry.js:101:16)
        at CallbackRegistry.create (file:///C:/pdfjs/botio-files-pdfjs/private/4ad1416cf0f063e/node_modules/puppeteer-core/lib/esm/puppeteer/common/CallbackRegistry.js:20:26)
        at BidiConnection.send (file:///C:/pdfjs/botio-files-pdfjs/private/4ad1416cf0f063e/node_modules/puppeteer-core/lib/esm/puppeteer/bidi/Connection.js:51:32)
        at Session.send (file:///C:/pdfjs/botio-files-pdfjs/private/4ad1416cf0f063e/node_modules/puppeteer-core/lib/esm/puppeteer/bidi/core/Session.js:134:42)
        at Session.<anonymous> (file:///C:/pdfjs/botio-files-pdfjs/private/4ad1416cf0f063e/node_modules/puppeteer-core/lib/esm/puppeteer/util/decorators.js:101:27)
        at WindowRealm.callFunction (file:///C:/pdfjs/botio-files-pdfjs/private/4ad1416cf0f063e/node_modules/puppeteer-core/lib/esm/puppeteer/bidi/core/Realm.js:92:51)
        at WindowRealm.<anonymous> (file:///C:/pdfjs/botio-files-pdfjs/private/4ad1416cf0f063e/node_modules/puppeteer-core/lib/esm/puppeteer/util/decorators.js:101:27)
        at #evaluate (file:///C:/pdfjs/botio-files-pdfjs/private/4ad1416cf0f063e/node_modules/puppeteer-core/lib/esm/puppeteer/bidi/Realm.js:134:42)
        at BidiFrameRealm.evaluateHandle (file:///C:/pdfjs/botio-files-pdfjs/private/4ad1416cf0f063e/node_modules/puppeteer-core/lib/esm/puppeteer/bidi/Realm.js:101:36)

What is the expected behavior?

The integration test should pass consistently.

What went wrong?

The integration test fails intermittently.

Link to a viewer

No response

Additional context

No response