fix: check content-type before applying spa patch (closes #597)

Jacky Zhao

2023-11-17 3f0be7fbe470500a57c457ad1d1c039175330697

 quartz.config.ts

@@ -69,6 +69,7 @@
      }),
      Plugin.Assets(),
      Plugin.Static(),
      Plugin.NotFoundPage(),
    ],
  },
}