A Firework fired behind a stainedglass block doesn't show any particles if a player is standing on the other side of the glass. Works with regular glass.
Video show example (had to cut it short) I promise that I did not fake it.
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Thank you for your report!
We're actually already tracking this issue in MC-161917, so I resolved and linked this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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