Cannot include URL query in basename

[goffioul]

I have a use case where my react app can be accessed using a URL that contains query parameters, e.g. http://example.com/index.html?foo. I create the history with createBrowserHistory({basename:'/index.html?foo'}). This produces warnings and I believe the path matching will not work. The root cause of the problem is that PathUtils.hasBasename does not escape special characters in prefix to create its regular expression.

[mjackson]

The basename does not support query parameters. It's a segment of the pathname.