I have set up karma with the karma-babel-preprocessor, and es2015 in the presets.
I'm using decorators in my code but I don't know how to configure karma to accept them. I have been trying for a while unsuccesfully.
Adding plugins: ['transform-decorators'] to the babelPreprocessor options doesn't help.
Any help will be appreciated.
This was caused by a currently open issue regarding decorators (which I'm using) and babel.
See these issues in Babel:
#2801 - Failed to transform decorators with babel-plugin-transform-decorators@6.0.14