{
:html => "text/html",
:text => "text/plain",
:js => "text/javascript",
:css => "text/css",
:ics => "text/calendar",
:csv => "text/csv",
:vcf => "text/vcard",
:vtt => "text/vtt",
:png => "image/png",
:jpeg => "image/jpeg",
:gif => "image/gif",
:bmp => "image/bmp",
:tiff => "image/tiff",
:svg => "image/svg+xml",
:mpeg => "video/mpeg",
:mp3 => "audio/mpeg",
:ogg => "audio/ogg",
:m4a => "audio/aac",
:webm => "video/webm",
:mp4 => "video/mp4",
:otf => "font/otf",
:ttf => "font/ttf",
:woff => "font/woff",
:woff2 => "font/woff2",
:xml => "application/xml",
:rss => "application/rss+xml",
:atom => "application/atom+xml",
:yaml => "application/x-yaml",
:multipart_form => "multipart/form-data",
:url_encoded_form => "application/x-www-form-urlencoded",
:json => "application/json",
:pdf => "application/pdf",
:zip => "application/zip",
:gzip => "application/gzip"
}.freeze