Embedded web media player JW Player now supports Chromecast
JW Player, the popular embedded media player that powers content from sources such as Kickstarter, IMDB, UFC and EA, is set to integrate Chromecast support. Starting with a few of the major players, casting will be made available in a limited beta roll out. The full-scale deployment will be welcome; its HTML5 and Flash player is used in more than two million websites across the globe.
Presumably the experience is not dissimilar from the YouTube playback in that a simple casting button appears in the video toolbar.