services.matrix-synapse.settings.url_preview_url_blacklist

Optional list of URL matches that the URL preview spider is denied from accessing.

Type
list of ((attribute set of string) or string convertible to it)
Default
[ ]
Example
[
  { scheme = "http"; } # no http previews
  { netloc = "www.acme.com"; path = "/foo"; } # block http(s)://www.acme.com/foo
]
Declared
<nixpkgs/nixos/modules/services/matrix/synapse.nix>