Verified fixed, tested the following policies for extensions:
ExtensionInstallBlacklist
ExtensionInstallWhitelist
ExtensionInstallForcelist
ExtensionInstallSources
ExtensionAllowedTypes
ExtensionSettings
No issues, policies fetched and applied as expected.
Chrome OS: 10804.0.0
Chrome: 69.0.3464.0
Deice: Robo
Comment 1 by ljusten@chromium.org
, Jun 20 2017