Append query symbol to the path as well

pkg/routes/index.go

@@ -49,7 +49,11 @@ func (r *Routes) usePostfixForce(c *routing.Context) (err error) {
 
 	fullPath = append(fullPath, '.')
 	fullPath = append(fullPath, []byte(templates.URLPostfix)...)
+
+	if c.QueryArgs().Len() > 0 {
+		fullPath = append(fullPath, '?')
 		fullPath = c.QueryArgs().AppendBytes(fullPath)
+	}
 
 	return r.relativeRedirectBytes(c, fullPath, fasthttp.StatusFound)
 }