USP in iframe installs broken __uspapi

[ReinoutStevens]

Type of issue

When __uspapi is provided through an iframe / __uspapiLocator, the consent management module installs __uspapi that communicates through the message api.
Once prebid has received its consent information, it removes the listener. As a result, other libraries that require consent info communicate with a broken __uspapi, as callbacks are never triggered

Description

The consentManagementUsp.js has the following code

    function uspapiCallback(consentObject, success) {
      window.removeEventListener('message', readPostMessageResponse, false);
      moduleCallback(consentObject, success);
    }

Removing the event listener results that subsequent calls to __tcfapi wont be handled by the newly installed __tcfapi function.
The solution is just to remove the window.removeEventListener line.

[stale]

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