[crash] textDocument/definition request throws

[AviVahl]

.root {
    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAECAYAAACp8Z5+AAAAH0lEQVQYV2NkQAX/GZH4/xkYGBhhAmAOSBJEwDkgAQCCrgQEjpMcPgAAAABJRU5ErkJggg==);

    background: rgb(0, 0, 0);
}

1. open in vscode.
2. hold ctrl and hover the url(...).
3. extension crashes with:

[Error - 1:47:41 PM] Request textDocument/definition failed.
  Message: Request textDocument/definition failed with message: Invalid regular expression: /value\(\s*xkYGBhhAmAOSBJEwDkgAQCCrgQEjpMcPgAAAABJRU5ErkJggg==)/: Unmatched ')'
  Code: -32603 

4. hold ctrl and hover the rgb(...).
5. extension crashes with:

[Error - 1:50:52 PM] Request textDocument/definition failed.
  Message: Request textDocument/definition failed with message: Cannot read property 'resolved' of undefined
  Code: -32603 

[tomrav]

Does not reproduce.