You can't change HTTP to allow that. However you could export or share the HTTP path out to another system and convert them via script.
Warning this will rename ALL files to lower case. Test these in a non-production environment, while they may work for me and others, they may affect your workload in an unexpected way.
From a Unix/Linux host it is as simple as: rename 'y/A-Z/a-z/' *
With a Windows batch file: for /F %i in ('dir /b /l') do rename %i %i <---hating the font here /l is ell, the letter after K and before M
for /F %i means for each file in the current directory assign it to the variable "i"
dir /b /l will output only the filenames and all in lowercase
do rename %i %i means rename the output of that dir /b /l from the current case output to the lowercase output.
- Scott