github.com repositories redirect to odd javascript-related url that 404s

[Elros]

https://github.com/multimc/mulitmc5 redirects to
https://github.com/multimc/javascript:%28function%28eventObj%29%20%7B%20%20var%20objectId%20=%20%27global-zeroclipboard-flash-bridge%27,%20%20%20%20%20%20ZC%20=%20null,%20%20%20%20%20%20swf%20=%20null;%20%20if%20%28typeof%20ZeroClipboard%20===%20%27function%27%20&&%20typeof%20ZeroClipboard.emit%20===%20%27function%27%29%20%7B%20%20%20%20ZC%20=%20ZeroClipboard;%20%20%7D%20%20else%20%7B%20%20%20%20swf%20=%20document%5BobjectId%5D%20||%20document.getElementById%28objectId%29;%20%20%20%20if%20%28swf%20&&%20typeof%20swf.ZeroClipboard%20===%20%27function%27%20&&%20typeof%20swf.ZeroClipboard.emit%20===%20%27function%27%29%20%7B%20%20%20%20%20%20ZC%20=%20swf.ZeroClipboard;%20%20%20%20%7D%20%20%7D%20%20if%20%28!ZC%29%20%7B%20%20%20%20throw%20new%20Error%28%27ERROR:%20ZeroClipboard%20SWF%20could%20not%20locate%20ZeroClipboard%20JS%20object!%5CnExpected%20element%20ID:%20%27%20+%20objectId%29;%20%20%7D%20%20return%20ZC.emit%28eventObj%29;%7D%29%28%7B%22name%22:%22flash-unavailable%22,%22type%22:%22error%22%7D%29;

this issue only occurs with lightspark on firefox
I use arch linux, if that helps

[James Phillips (78luphr0rnk2nuqimstywepozxn9kl19tqh0tx66b5dki1xxsh5mkz9gl21a5rlwfnr8jn6ln0m3jxne2k9x1ohg85w3jabxlrqbgszpjpwcmvkbcvq9spp6z3w5j1m33k06t-launchpad-a811i2i3ytqlsztthjth0svbccw8inm65tmkqp9sarr553jq53in4xm1m8wn3o4rlwaer06ogwvqwv9mrqoku2x334n7di44o65qze67n1wneepmidnuwnde1rqcbpgdf70gt)]

I have reproduced the issue with lightspark-common 0.7.2-3.1+b1 i386 High-performance SWF player - common data (debian). I was directed here after reporting the issue to github (I have lightspark disabled now).

https://github.com/bitcoin/bitcoin/issues?state=open
is redirected to (resulting in a 404 error):
https://github.com/bitcoin/bitcoin/javascript:%28function%28eventObj%29%20%7B%20%20var%20objectId%20=%20%27global-zeroclipboard-flash-bridge%27,%20%20%20%20%20%20ZC%20=%20null,%20%20%20%20%20%20swf%20=%20null;%20%20if%20%28typeof%20ZeroClipboard%20===%20%27function%27%20&&%20typeof%20ZeroClipboard.emit%20===%20%27function%27%29%20%7B%20%20%20%20ZC%20=%20ZeroClipboard;%20%20%7D%20%20else%20%7B%20%20%20%20swf%20=%20document%5BobjectId%5D%20||%20document.getElementById%28objectId%29;%20%20%20%20if%20%28swf%20&&%20typeof%20swf.ZeroClipboard%20===%20%27function%27%20&&%20typeof%20swf.ZeroClipboard.emit%20===%20%27function%27%29%20%7B%20%20%20%20%20%20ZC%20=%20swf.ZeroClipboard;%20%20%20%20%7D%20%20%7D%20%20if%20%28!ZC%29%20%7B%20%20%20%20throw%20new%20Error%28%27ERROR:%20ZeroClipboard%20SWF%20could%20not%20locate%20ZeroClipboard%20JS%20object!%5CnExpected%20element%20ID:%20%27%20+%20objectId%29;%20%20%7D%20%20return%20ZC.emit%28eventObj%29;%7D%29%28undefined%29;

The redirection does not occur with JavaScript disabled (probably because light-spark does not run). Since iceweasel (similar to firefox) stoped reliably stopping running scripts when I disabled JavaScript, I now use NoScript.

[Xan (dxpublica)]

Confirmed: with archlinux firefox 35.0.1. With Chromium it does not happen.

[Xan (dxpublica)]

I used 0.7.2.r122.g3d55371-1

[Uri (urisharf)]

Seeing this as well after installing light spark (Ubuntu 14.10, Firefox 36.0).