网页报这种错误： (blocked:mixed-content)
使用了https就不能夹生http
jquery.min.js:4Mixed Content: The page at 'https://res.xxx.com' was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint 'http://app.api.xxx.com'. This request has been blocked; the content must be served over HTTPS.
jquery.min.js:4XMLHttpRequest cannot load http://app.api.xxx.com. Failed to start loading.