Proof

react-native-fast-io

published CompressionStream.js runs unchanged against a CompressorFactory seam that mirrors the cxx zlib settings and call sequence exactly

50%

API coverage

No visual proof cases have been published for this package yet. The registry summary below describes what the compat layer implements.

Working

gzip, deflate, and deflate-raw compression through the published w3c CompressionStream on both platforms

Missing

file system, streams, network, and websocket hybrids: construction shims only