Okey so I ended up working on both parts,
  • the regex check for urls containing an image suffix e.g. (.gif, .png)
and
  • regular urls as shown in the bounty description that requires an async request to check if the url is for an image.
Here's a 4 minute video demo:
any feedback from stackers here would be appreciated, and of course from the guys at SN HQ. thanks
Sorry for the delay. I still haven't reviewed the code but that's my fault - not yours.
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Sent you another 50k sats as recommended by @ekzyis after his review.
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much appreciated 👍 i keep an eye on github so any changes needed just fire me an @ on there and I'll dee what i can do
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