When uglify: true, output is transformed in the way, which produces runtime errors in IE 11.
For example, undefined check:
typeof varName1 !== "undefined"
is transformed to:
which fails with "Wrong number of arguments or invalid property assignment" error at runtime.
Most likely, related to the mishoo/UglifyJS#2813
When
uglify: true, output is transformed in the way, which produces runtime errors in IE 11.For example, undefined check:
is transformed to:
which fails with "Wrong number of arguments or invalid property assignment" error at runtime.
Most likely, related to the mishoo/UglifyJS#2813