title: How to use blob urls with Chromecast?
body: <p>I am currently experimenting with the <code>google-castable-video</code> component of the Google Web Components of the Polymer library. So far no larger issues. But when I try to stream a video, which has a blob-url as source, the stream on the Chromecast starts buffering, but immediatly stops without showing a frame.</p>
  
  <p>Now i am asking myself, if it is even possible to use an url like <code>blob:http%3A//127.0.0.1%3A8889/fd3e3425-f5ea-48f1-a380-5febf0f071ad</code> with the Chromecast-SDK. If not, are there any alternative ways to load a local video and stream that with this Web-Component? (Excluding existing tools like Videostream, etc.)</p>
  
  <p>Any help appreciated.</p>