What version of chrome was this in? There is a reason the bug template asks for that... But probably should just be closed/dup-ed against  bug 590222  where fixing this got tracked...

For info, this is fixed in 52.0.2712.0 canary.

jyasskin@, please confirm, but I assume the problem is this was using a version of Chrome that doesn't yet have the fix for the error message. TL;DR is it appears you need to be using Chrome at v51.0.2.2704.14 or later. This version doesn't seem to be available in Dev channel yet.

If interested in the longer version, here are the details:

As in  bug 590222 , the change landed in trunk on Apr 12, and was merged to M51 on Apr 13.

This was fixed in an older canary (52.0.2707.0 on Mac), but is not fixed in the current Dev version on Android, 51.0.2704.10. This seems to be confirmed by the source log, where .10 doesn't have the fix:
https://chromium.googlesource.com/chromium/src/+log/51.0.2700.0..51.0.2704.10?pretty=fuller&n=10000

According to the source log, the fix doesn't appear until v51.0.2.2704.14:
https://chromium.googlesource.com/chromium/src/+log/51.0.2700.0..51.0.2704.14?pretty=fuller&n=10000

Sorry, I lost track of the version (I'm usually very diligent about putting versions in bug reports, I promise! ;-), and I can't repro in any of the last few Canaries anymore.
Seems to be fixed now; let's dupe.