FastCGI: f->split_parts reset on request start. Additionally, make sure to check for errors from ngx_http_parse_header_line() call after joining saved parts. There shouldn't be any errors, though check may help to catch bugs like missing f->split_parts reset. Reported by Lucas Molas.

if exists("b:did_indent")
    finish
endif
let b:did_indent = 1

setlocal indentexpr=

" cindent actually works for nginx' simple file structure
setlocal cindent
" Just make sure that the comments are not reset as defs would be.
setlocal cinkeys-=0#