On Windows attempt to get result to crash of fossil.exe (Windows pops window 'fossil.exe unexpectedly stops' and web-server, running this cgi, shows error page about fossil process).

On Linux it seems to hang (nothing appears in browser if I run

This is not a code defect, but it would be useful, if this page (that normally accepts POSTs) output something in case of GET too, instead of crash. Meta information about cloneability, for example.