compressible
Compressible Content-Type / mime checking.
Installation
$ npm install compressible
API
var compressible = require('compressible')
compressible(type)
Checks if the given Content-Type is compressible. The type argument is expected to be a value MIME type or Content-Type string, though no validation is performed.
compressible('text/html') // => true compressible('image/png') // => false