^start of line
.{14}any character (except for line terminators), repeated exactly 14 times
\[the literal [ (9110 / 1338 / 5B16)
Negated Character Class[^\]]+ +matches at least one character outside the set below:
\]the literal ] (9310 / 1358 / 5D16)
\]the literal ] (9310 / 1358 / 5D16)
\S+any non-whitespace character, repeated at least once
the literal (3210 / 408 / 2016)
\S+any non-whitespace character, repeated at least once
HTTPthe literal text HTTP (case sensitive) \/the literal / (4710 / 578 / 2F16)
Negated Character Class[^"]+ +matches at least one character outside the set below:
"the literal " (3410 / 428 / 2216)
\S+any non-whitespace character, repeated at least once
the literal (3210 / 408 / 2016)
\S+any non-whitespace character, repeated at least once
g modifier: global. Finds all matches instead of stopping after the first
m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string