iex> Regex.scan(~r/src=(\S+)/, string <> string, capture: :all_but_first)
[
["https://player.vimeo.com/video/687889699"],
["https://player.vimeo.com/video/687889699"]
]
iex> Regex.scan(~r/src=(\S+)/, string <> string, capture: :all_but_first)
[
["https://player.vimeo.com/video/687889699"],
["https://player.vimeo.com/video/687889699"]
]