Until Chromium 37, var videoElement = document.createElement('video')
would create a video element, but with Chromium 38 it's not the case anymore.
EDIT
If you want to check this, open a console and type :
var videoElement = document.createElement('video')
videoElement.toString()
This should return
"[object HTMLVideoElement]"
proving videoElement
is a video element. In Chromium 38 I get :
"[object HTMLUnknownElement]"
Is there any way to fix this ?
PS: I created an issue on chromium issues : https://code.google.com/p/chromium/issues/detail?id=427856