Internetexplorerintegrationtestingallowed

: The policy officially stopped working after Microsoft Edge version 94.

: For temporary testing without permanent policy changes, developers can still use the --ie-mode-test command-line flag. 3. Registry Configuration (Legacy) internetexplorerintegrationtestingallowed

So from a compliance, security, and support perspective, Microsoft says: do not run automated tests against IE . : The policy officially stopped working after Microsoft

If you’ve stumbled across the cryptic flag internetexplorerintegrationtestingallowed in a legacy config file or test script, you’re likely working on—or maintaining—a system that once relied on Internet Explorer (IE). The short answer is: and support perspective