perf: request.js;

src/utils/request.js

@@ -47,11 +47,14 @@ function checkStatus(response) {
 }
 
 function checkBizCode(responseJson) {
+  if (responseJson && Object.prototype.hasOwnProperty.call(responseJson, 'errcode')) {
     if (responseJson.errcode === 0) {
       return responseJson;
     } else {
       throw new Error(responseJson.errmsg + ': ' + responseJson.errcode);
     }
+  }
+  return responseJson;
 }
 
 export function fetchText(url) {
@@ -64,7 +67,6 @@ export function fetchText(url) {
     }
   }).then(checkStatus)
     .then(response => response.text())
-    .then(checkBizCode)
     .catch(error => {
       throw error
     })
@@ -150,7 +152,6 @@ export function postStream(url, obj) {
     }
   }).then(checkStatus)
     .then(response => response.json())
-    .then(checkBizCode)
     .catch(error => {
       throw error
     })