fix: should not pass undefined to bindingsQuery (#1735)

closes #1740

Author: PeckZeg

src/index.ts

@@ -163,7 +163,7 @@ export default function loader(
     const scopedQuery = hasScoped ? `&scoped=true` : ``
     const attrsQuery = attrsToQuery(descriptor.template.attrs)
     const bindingsQuery = script
-      ? `&bindings=${JSON.stringify(script.bindings)}`
+      ? `&bindings=${JSON.stringify(script.bindings ?? {})}`
       : ``
     const query = `?vue&type=template${idQuery}${scopedQuery}${attrsQuery}${bindingsQuery}${resourceQuery}`
     templateRequest = stringifyRequest(src + query)