Fix RegExp from navigateFallbackBlacklist (workbox) (#7176)

Exclude URLs that contains a "?" character.

packages/react-scripts/config/webpack.config.js

@@ -664,9 +664,11 @@ module.exports = function(webpackEnv) {
           navigateFallbackBlacklist: [
             // Exclude URLs starting with /_, as they're likely an API call
             new RegExp('^/_'),
-            // Exclude URLs containing a dot, as they're likely a resource in
-            // public/ and not a SPA route
-            new RegExp('/[^/]+\\.[^/]+$'),
+            // Exclude any URLs whose last part seems to be a file extension
+            // as they're likely a resource and not a SPA route.
+            // URLs containing a "?" character won't be blacklisted as they're likely
+            // a route with query params (e.g. auth callbacks).
+            new RegExp('/[^/?]+\\.[^/]+$'),
           ],
         }),
       // TypeScript type checking