javascript - HTML/Canvas Recording not working on Firefox 36.0.4 -


i'm getting following error when i'm running recordrtc canvas/html recorder demo.

on firefox error console:

error: typeerror: document.getelementbyid(...) null
source file: chrome:// web-developer /content/overlay/javascript/overlay.js
line: 7333

error: index or size negative or greater allowed amount
source file: https:// cdn.webrtc-experiment.com / screenshot.js
line: 10

after recording i'm getting note on player saying "videos can't played because file corrupt"

can please me how fix firefox issue? in advance.

screenshot "videos can't played because file corrupt" on firefox


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