https://api.flutter.dev/flutter/dart-html/Window/progressEvent-constant.html
progressEvent constant - Window class - dart:html library - Dart API
API docs for the progressEvent constant from the Window class, for the Dart programming language.
progresseventconstantwindowclassdart
https://optiview.dolby.com/docs/theoplayer/v7/api-reference/web/interfaces/ProgressEvent.html
ProgressEvent | THEOplayer Web SDK
Documentation for THEOplayer Web SDK
progresseventtheoplayerwebsdk