Name for the Trusted Types policy used in Closure Safe
Types. Differs from goog.TRUSTED_TYPES_POLICY_NAME
in that the latter is
also used for other purposes like the debug loader. If empty, Closure Safe
Types will not use Trusted Types. Default is goog.TRUSTED_TYPES_POLICY_NAME
plus the suffix #html
, unless goog.TRUSTED_TYPES_POLICY_NAME
is empty.