Re-enable Web Components v0 API until M84 (obsolete)

OBSOLETE: This policy is obsolete and doesn't work after Microsoft Edge 84.

This policy doesn't work because this policy allowed these features to be selectively re-enabled until Microsoft Edge version 85. The Web Components v0 APIs (Shadow DOM v0, Custom Elements v0, and HTML Imports) were deprecated in 2018, and are disabled by default starting in Microsoft Edge version 80.

If you set this policy to True, the Web Components v0 features are enabled for all sites.

If you set this policy to False or don't set this policy, the Web Components v0 features are disabled by default, starting in Microsoft Edge version 80.