I intend to remove the prefixed version of the Page Visibility API, which consists of the mozvisibilitychange event and mozHidden and mozVisibilityState document properties.
The unprefixed versions of these features have been available since Firefox 18, and a deprecation warning was issued on fxsitecompat.com in October 2015. All other engines have supported the unprefixed version for quite a while as well (IE11, Chrome 33, Safari 6.1). Bug for removal: https://bugzilla.mozilla.org/show_bug.cgi?id=812701 Deprecation notice: https://www.fxsitecompat.com/en-CA/docs/2015/prefixed-page-visibility-api-will-be-removed/ Link to standard: https://www.w3.org/TR/page-visibility/ _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
