2.0.0

Breaking

• Drop CommonJS support. The package is now ESM only;
• Remove Encoder from exports;
• Remove deprecated isFormDataLike helper. Use isFormData instead.

Update

• Minimal required Node.js version is 14.18;
• Headers in FormDataEncoder.headers property can be accessed in case-insensitive manner. TypeScript users still have correct TS typings, but only for original and lowercased keys (for example Content-Type and content-type);
• FormData instance will be preserved in array inside of FormDataEncoder instance (previously it held a reference to given FormData instance);
• Deprecate isFileLike helper. Use isFile instead;
• Deprecate FormDataEncoder.getContentLength() method. The content-length is now static value, so this method makes no sense. Use FormDataEncoder.contentLength or FormDataEncoder.headers["content-length"] instead.

Add

• Expose FormDataEncoderHeaders type.

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All changes: v1.7.2...v2.0.0