Outputs headers for files based upon exclusion from an extension list

.htaccess output headers for static content

# Outputs headers for files that are not static.
# Using a negative lookahead, we exclude any files that match the list, then apply the headers.
# If you wish to apply headers based on the list, remove the negative lookahead.
<FilesMatch "^(.+\.(?!(?:gif|png|bmp|jpe?g|html?|xml|mp3|mp4|wma|flv|wmv|ogg|avi|docx?|xlsx?|pptx?|txt|pdf|zip|exe|tat|ico|css|js|swf|apk|m3u8|ts|ejs|svg|woff|otf)$)[^\.]+|[^\.]+?)$">
    Header set Cache-Control "no-cache"
</FilesMatch>

# Regex works as follows:
#
#   ^( # Create matching group, match from start
#       .+\. # Greedily consume filename to last dot i.e. "homeage."
#       # Look ahead excludes specified extensions from match i.e. gif, png, bmp etc.
#       (?!(?:gif|png|bmp|jpe?g|html?|...)$)
#       # We have a match, consume extension i.e. "php"
#       [^\.]+
#   |
#       # If we have no extension, just match everything. i.e. /home/
#       [^\.]+?
#   )$ # Match to end of string