Shared Dictionary Compression

Side-by-side comparison: standard Brotli vs dictionary-compressed Brotli (RFC 9842)

Step 1: First Visit

Both iframes load the same ECharts bundle. The dictionary-enabled version registers for future use.

Standard Brotli Waiting

Transfer —

Decoded —

Time —

Dictionary Brotli Waiting

Transfer —

Decoded —

Time —

Dictionary Registering

Step 2: Deploy New Version

Same app, tiny config change (color theme + one data series). Standard re-downloads the full bundle. Dictionary uses the previous version as a compression dictionary.

Standard Brotli Waiting

Transfer —

Decoded —

Time —

Dictionary Brotli Waiting

Transfer —

Decoded —

Time —

Encoding —