search

paulmillr / es6-shim

ECMAScript 6 compatibility shims for legacy JS engines
http://paulmillr.com
MIT License
3.11k stars 388 forks source link

IE9 fails to load minified shim #449

Closed nmoinvaz closed 6 years ago

nmoinvaz commented 6 years ago

It appears that IE9 is having problems loading the minified shim. 

errorLine (11)
errorCharacter (5150)
errorCode (0)
errorMessage (Expected identifier, string or number)
errorUrl (es6-shim.min.js)

When I used the unminified version it works as expected. When I take the unminified version and minify it using Google's Closure Compiler, it works.

https://closure-compiler.appspot.com/

I believe the minfier that you are using is not turning the keyword catch for Promises into a string.

...o.promise}});b(T,{catch:function(e){return this.then(nu...

ljharb commented 6 years ago

Thanks, that sounds about right. I'll look into it.

ljharb commented 6 years ago

Fixed in 8583cbe2186ec12bfbf4218ccbce7fc73f96de87 (in the next release)