UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.104 Safari/537.36

Steps to reproduce the problem:
1. create a mediaelment from a file as "URL"
2. use audiocontext to decode audio arraybuffer of same file decodeAudioData WITHOUT connecting it to the audiocontext
3. bind the mediaElement to  createMediaElementSource on same context
3. get "Uncaught DOMException: Failed to execute 'createMediaElementSource' on 'BaseAudioContext': HTMLMediaElement already connected previously to a different MediaElementSourceNode."

What is the expected behavior?
get a MediaElementSourceNode

What went wrong?
Audiocontext Decoding an audiobuffer into a AudioBufferSourceNode somehow created a "MediaElementSourceNode" (which I do not have access) thus preventing use of a mediaelement in the same context. 

(Not even hitting the Spec Loophole on mediaElement missing disconnect/unbind, because I don't have access to the MediaElementSourceNode)

Did this work before? N/A 

Does this work in other browsers? N/A

Chrome version: 59.0.3071.104  Channel: stable
OS Version: 10.0
Flash Version: 

If not trivial in your code base. I can make a jsfidle.