| { |
| "api": { |
| "Element": { |
| "transitionstart_event": { |
| "__compat": { |
| "description": "`transitionstart` event", |
| "mdn_url": "https://developer.mozilla.org/docs/Web/API/Element/transitionstart_event", |
| "spec_url": "https://drafts.csswg.org/css-transitions/#transitionstart", |
| "tags": [ |
| "web-features:transitions" |
| ], |
| "support": { |
| "chrome": { |
| "version_added": "74" |
| }, |
| "chrome_android": "mirror", |
| "edge": { |
| "version_added": "12" |
| }, |
| "firefox": { |
| "version_added": "53" |
| }, |
| "firefox_android": "mirror", |
| "ie": { |
| "version_added": "10", |
| "partial_implementation": true, |
| "notes": "The `ontransitionstart` event handler property is not supported. To listen to this event, use `element.addEventListener('transitionstart', function() {});`." |
| }, |
| "oculus": "mirror", |
| "opera": "mirror", |
| "opera_android": "mirror", |
| "safari": [ |
| { |
| "version_added": "13.1" |
| }, |
| { |
| "version_added": "12", |
| "partial_implementation": true, |
| "notes": "The event handler exists but will never be called." |
| } |
| ], |
| "safari_ios": "mirror", |
| "samsunginternet_android": "mirror", |
| "webview_android": "mirror", |
| "webview_ios": "mirror" |
| }, |
| "status": { |
| "experimental": false, |
| "standard_track": true, |
| "deprecated": false |
| } |
| } |
| } |
| } |
| } |
| } |
