AboutSupportDeveloper GuideVersion 40.130.100.7
AutoplayPolicyOptions: "no-user-gesture-required" | "user-gesture-required" | "document-user-activation-required"

Autoplay policy to apply to content in the window, can be no-user-gesture-required, user-gesture-required, document-user-activation-required. Defaults to no-user-gesture-required.