diff --git a/src/views/portal/case/Detail.vue b/src/views/portal/case/Detail.vue
index 7f2595ca..977ac84a 100644
--- a/src/views/portal/case/Detail.vue
+++ b/src/views/portal/case/Detail.vue
@@ -220,7 +220,7 @@ export default {
             timedOut = true;
             xmlhttp.abort();
         }, 5000);
-    xmlhttp.open("HEAD", "http://uapi.boe.com.cn",true);
+    xmlhttp.open("HEAD", window.location.protocol+"//uapi.boe.com.cn",true);
     xmlhttp.send();
     xmlhttp.onreadystatechange=function() {
       if (xmlhttp.readyState==4) {