Parse error: Unknown pseudo-element "backdrop".

[Ulyanov-programmer]

Hello!

While using your library, I received the following error:

parse error: Unknown pseudo-element "backdrop".

It occurs if the following code is analyzed:

::backdrop

Apparently, this error does not appear when analyzing other pseudo-elements.

Updated: I can just allow this pseudo element when creating a parser instance, but since the support for this pseudo element is high, I'm sure its support in the library is necessary.