Error on strings wrapped with ``

[BehnamAbdy]

for some reasons inside angular we wrap long string inside `` instead of '' or "",
example: var temp = some value for my string;
then i noticed that gulp-uglify crashes when gets that line

[terinjokes]

@BehnamAbdy You need to use the in-development fork of uglify-js, as documented in the README. The current stable release doesn't support ES6 fully yet.