My pleasure :]
N.b., if you'd like to try fiddling with Backdooms in that Sandbox, either use the "original" HTML payload (with or without `data:text/html,` prefix in the content), or use "verbatim" (`data:text/html;verbatim,` prefix) when trying that last dataURI payload from the comment, otherwise all `%23` would be double encoded, so you'd get wrong colours. ";verbatim" turns off implicit URI Encoding. (It is not part of the tech, just my hacky hatch to be able to test both "true" dataURIs that can be used "verbatim" in URLs, or have convenience of auto-encoding, but have to extract sandbox iframe resulting payload afterwards, for "ejecting" the "project".
My pleasure :] N.b., if you'd like to try fiddling with Backdooms in that Sandbox, either use the "original" HTML payload (with or without `data:text/html,` prefix in the content), or use "verbatim" (`data:text/html;verbatim,` prefix) when trying that last dataURI payload from the comment, otherwise all `%23` would be double encoded, so you'd get wrong colours. ";verbatim" turns off implicit URI Encoding. (It is not part of the tech, just my hacky hatch to be able to test both "true" dataURIs that can be used "verbatim" in URLs, or have convenience of auto-encoding, but have to extract sandbox iframe resulting payload afterwards, for "ejecting" the "project".