Criteo: Handle RemoveUserSyncIframe

[TheodorCiuciucCriteo]

Created as a response to the following issue: #15496

Basically this PR ensures that the new function of IFrame removal, doesn't let promises remain uncompleted indefinitely.

[github-actions]

This PR introduces changes that may not work on all browsers. According to Babel, the following polyfills may be needed, and they are not automatically included:

• Changes to src/utils.js may need:
  • esnext.weak-map.get-or-insert
  • esnext.weak-map.get-or-insert-computed
• Changes to test/spec/modules/criteoBidAdapter_spec.js may need:
  • es.iterator.constructor
  • es.iterator.map
  • esnext.iterator.constructor
  • esnext.iterator.map

The best way to address this is to provide good test coverage, as normal PR checks run unit tests on older browsers.

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Cancel deferred iframe insertion during cleanup

When userSync.usePoliteSync is enabled and scheduler.postTask or requestIdleCallback has not executed yet, pbjs.removeUserSyncs() finds no iframe and therefore never invokes onCleanup; this queued task subsequently inserts the iframe after cleanup. For adapters such as Criteo, that leaves the message handler active and recreates a sync iframe after an SPA navigation attempted to remove it, so pending polite insertions need to be tracked and cancelled or cleaned up by removeUserSyncs().

Useful? React with 👍 / 👎.

[barecheck]

Barecheck - Code coverage report

Total: 91.24%

Your code coverage diff: 0.01% ▴

Uncovered files and lines

File	Lines
modules/criteoBidAdapter.js	134, 245, 269, 283, 285, 442, 518, 533, 538, 562, 653, 659, 664, 669, 676-677
modules/mobkoiIdSystem.js	57-58, 79-81, 125, 133, 135-138, 140-142, 149
src/adapters/bidderFactory.ts	474-476, 578-579, 587, 601, 664-665, 669-670, 698-699
src/userSync.ts	141, 181, 201, 281
src/utils.js	48, 392, 408-409, 421, 459, 478, 493, 577, 610, 619, 636-637, 665-666, 740, 776, 780, 879-881, 960, 1008, 1049, 1054, 1058-1059, 1209, 1245, 1250, 1277, 1283

[dgirardi]

LGTM. Merging master should clear the test failures.