whitequark/rack-utf8_sanitizer: Rack::UTF8Sanitizer is a Rack middleware which cleans up invalid UTF8 characters in request URI and headers.

Rack::UTF8Sanitizer is a Rack middleware which cleans up invalid UTF8 characters in request URI and headers. Additionally, it cleans up invalid UTF8 characters in the request body (depending on the configurable content type filters) by reading the input into a string, sanitizing the string, then replacing the Rack input stream with a rewindable input stream backed by the sanitized string. .