Compression¶

SWS provides Gzip, Deflate, Brotli and Zstandard (zstd) compression of HTTP responses.

The compression functionality is determined by the Accept-Encoding header and is only applied to text-based web file types.

MIME types compressed¶

Only this list of common text-based MIME-type files will be compressed either with Gzip, Deflate or Brotli via the Accept-Encoding header value.

text/html
text/css
text/javascript
text/xml
text/plain
text/csv
text/calendar
text/markdown
text/x-yaml
text/x-toml
text/x-component
application/rtf
application/xhtml+xml
application/javascript
application/x-javascript
application/json
application/xml
application/rss+xml
application/atom+xml
application/vnd.ms-fontobject
font/truetype
font/opentype
image/svg+xml
application/wasm

This feature is enabled by default and can be controlled by the boolean -x, --compression option or the equivalent SERVER_COMPRESSION env.

static-web-server \
    --port 8787 \
    --root ./my-public-dir \
    --compression true