Is it possible to change files encoding to UTF-8 with BOM?

I'm using angular-filter npm package within a cordova app. That app is being targeted to all 3 mobile platforms (iOS, Android, WP) and I'm having issues while trying to publish a WP version. Basically, when the app is being processed after a store upload, it gives me errors for `angular-filter.js` and `angular-filter.min.js` that those files should be UTF-8 with BOM. I'm using a plenty of other npm packages and those are the only files that have this issue.

Would it be possible to change encoding inside angular-filter package? Would that affect negatively anyone?

The issue is about the encoding of angular-filter.js and angular-filter.min.js files. Check the build configuration (likely in package.json, Gruntfile, or Gulpfile) to see how these files are generated. Look for encoding settings in the minification or concatenation tasks. Verify the current encoding and modify the build process to output UTF-8 with BOM. Test by building the package and checking the resulting files with a hex editor or command-line tool like `file`.

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