change id to pathname

Author: snowdreams1006

index.js

@@ -1,10 +1,15 @@
 hexo.extend.filter.register('after_post_render', function(data) {
 var gitalkConfig = hexo.config.plugins.gitalk;
 if (gitalkConfig) {
-gitalkConfig.id = data._id;
-
 data.content = data.content + '\n<div id="gitalk-container"></div>\n<link rel="stylesheet" href="https://unpkg.com/gitalk/dist/gitalk.css"><script src="https://unpkg.com/gitalk/dist/gitalk.min.js"></script>';
-var str = '<script>new Gitalk(' + JSON.stringify(gitalkConfig) + ').render("gitalk-container")' + '</script>';
+var str = `
+<script>
+var gitalkConfig = ${JSON.stringify(gitalkConfig)};
+ gitalkConfig.id = location.pathname;
+var gitalk = new Gitalk(gitalkConfig);
+ gitalk.render("gitalk-container");
+ </script>`;
+
 data.content = data.content + '\n' + str;
 }