docs: update demo for SSR

components/select/demo/search-box.md

@@ -16,7 +16,7 @@ Autocomplete select with search field.
 
 ````jsx
 import { Input, Select, Button, Icon } from 'antd';
-import jsonp from 'jsonp';
+import jsonp from 'fetch-jsonp';
 import querystring from 'querystring';
 import classNames from 'classnames';
 const Option = Select.Option;
@@ -36,7 +36,9 @@ function fetch(value, callback) {
       code: 'utf-8',
       q: value,
     });
-    jsonp(`https://suggest.taobao.com/sug?${str}`, (err, d) => {
+    jsonp(`https://suggest.taobao.com/sug?${str}`)
+      .then(response => response.json())
+      .then((d) => {
         if (currentValue === value) {
           const result = d.result;
           const data = [];

package.json

@@ -112,7 +112,7 @@
     "jest-cli": "^17.0.0",
     "jsonml-to-react-component": "~0.2.0",
     "jsonml.js": "^0.1.0",
-    "jsonp": "^0.2.0",
+    "fetch-jsonp": "^1.0.3",
     "lesshint": "^2.0.0",
     "lodash.debounce": "^4.0.6",
     "mockdate": "^2.0.1",