'browser' issue in package.json results in an Empty Object

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The file specified in 'browser' field of package.json should export a value (using UMD or CJS) but you directly put an IIFE file here. As a result, the winbox can usually be empty when imported using tools like Parcel.

Some prior issues look like caused by this but didn't really got solved: https://github.com/nextapps-de/winbox/issues/112 https://github.com/nextapps-de/winbox/issues/68 https://github.com/nextapps-de/winbox/issues/1

Please fix the 'browser' value