Internet Explorer 11 + Edge 12-13-14 JavaScript parsing issues

[mathiasbynens]

Internet Explorer 11 + Edge 12-13-14 JavaScript parsing issues

[mathiasbynens]

Have you ever had any issue of this kind?

#40 sounds similar. It sounds like this issue only occurs randomly / sometimes — is that correct?
Could you provide a reduced test case so I can easily verify the issue?

[gnutix]

Concerning #40, on my application there is only YUI code that is minified. All other vendors (incl he.js) and the application code is not.

I've never encountered it myself, as I'm on Linux and don't have IE11/Edge easily available and never (yet) went through the trouble of settting up VMs. According to the high number of visitors on the application and the low number of errors reported, and their random nature (in the error itself and the file/line it points to), I fear that it will be Mission Impossible to have a truly reproducible test case...

In the meantime, I've replaced he.js by a simple regex (even though I know the drawbacks), just to isolate if it's the source of the issue or not (might be YUI, or minified YUI, or even another piece of code...). Once I'll know for sure that it's caused by he.js, maybe I'll find the time to dig more into it (VMs and such)

[gnutix]

I've had the error again without he.js in the project! ... I've added it again.
Now let's see if YUI minified is the cause. I'll keep you posted just in case someone else, someday, has the same issue.

[mathiasbynens]

Much appreciated!

[gnutix]

I had two error reports even with non-minified JS... :( Guess I'll still have to find a solution. If you're curious to follow : http://stackoverflow.com/questions/43044844/ie11-edge-12-13-14-random-javascript-parsing-errors-caused-by-very-long-obje