\ban ASCII word boundary
httpthe literal text http (case insensitive) s?optionally matches the literal s (11510 / 1638 / 7316) (case insensitive)
\/the literal / (4710 / 578 / 2F16)
\/the literal / (4710 / 578 / 2F16)
\S+any non-whitespace character, repeated at least once
g modifier: global. Finds all matches instead of stopping after the first
i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters