"Can't find variable: pR" and a broken websites in Safari on mac

[VFK]

On some websites i'm getting the error Can't find variable: pR in console and all website's scripts looks broken.
flickr.com - try to open any photo and the page won't be fully loaded.
hummingbird.me - i see only a blank gray page.
There are other sites with the same error, but i don't remember which.
I'm getting this error only on Safari, chrome works fine.

OSX Yosemite 10.10.1 (14B25)
Safari 8.0.2 (10600.2.5)
No other extensions except uBlock 0.8.2.3

[Deathamns]

That was a typo, which has been fixed, just not pushed to the master branch.
If you're building if for yourself, then you can build it from here, or change pR to rS in this line.