I run this site and have added all the appropriate open graph and twitter meta tags needed to ensure that link unfurling works properly on my site. It works everywhere, expect for when it's sent as a Slack Message. I've confirmed that it works on Facebook, Twitter, Linkedin and even Discord but not on Slack :( I would appreciate any help I can get 🙏
8 answers
SOLVED: Get your meta tags higher up!
I needed to put <meta> tags before the CSS which gets injected in the <head> of my HTML. The Slack parser only looks so far into the document for the meta details. This can be hard to debug because sometimes the parser will look further than the limit for unknown reasons.
Thanks to the folks at Slack!
