Might be worth pointing out this was previously known as the ghacks.net's user.js, and been available for years, https://github.com/ghacksuserjs/ghacks-user.js

I can't get it to work, hope this helps:

Firefox 32:

ICE failed, see about:webrtc for more details

Nightly 35a1:

Mandatory/optional in createOffer options is deprecated! Use {} instead (note the case difference)!

setLocalDescription called without success/failure callbacks. This is deprecated, and will be an error in the future.

ICE failed, see about:webrtc for more details

this._pc is null bundle.js:25705

Chrome 37:

Uncaught, unspecified "error" event. bundle.js:9134

An awesome list of enhancements. Something not mentioned there is that the window.onerror function has a new "error obj" parameter with the stacktrace, which i found quite handy.

I think that's the first 13-pages-long cheatsheet i see.

I got excited when i saw the results since they looked awesome, such that I thought I could replace my quick&dirty transparent GIFs script[1], but apparently it has issues with low-resolution images.

[1] : convert -fill none -draw "matte 0,0 floodfill" -type optimize -colors 64 +dither -trim -fuzz 3% +repage -strip $1 $2

Nevertheless, it's a great technique which i've just saved for such specific cases. Thanks!

We at the jsPDF Team will be pleased if you help us fixing that issue, rather than just waiting for it to be fixed.