Importing file containing ? fails on windows

[kaksmet]

Running the following on windows 10:

esbuild index.css --bundle --outdir=build

with index.css looking like this:

@import "./foo.css?bar";

and foo.css being an empty file gives this error:

 > error: Cannot read directory "foo.css?bar": The filename, directory name, or volume label syntax is incorrect.

Doing the same thing under WSL2 succeeds without any errors.

esbuild 0.9.3
node 14.16.0