add environ error message

add to environ some data and some codereview pages
some fix oembed and OpenGraph

wwwroot/js/site.js

@@ -1,18 +1,19 @@
 let blogId = $("#blogId").text();
-function loadComments () {
-    fetch(`/api/Blog/${blogId}/comments`)
-        .then(response => {
-            let data = response.json();
-            data.then(k => {
-                for (let i = 0; i < k.length; i++) {
-                    let date = new Date(k[i].dateTime * 1000);
-                    $("#commentBar").after(
-                        `<div class="d-flex flex flex-start bg-dark bot-1">
+function loadComments() {
+    if (document.location.pathname.startsWith("/Blog")) {
+        fetch(`/api/Blog/${blogId}/comments`)
+            .then(response => {
+                let data = response.json();
+                data.then(k => {
+                    for (let i = 0; i < k.length; i++) {
+                        let date = new Date(k[i].dateTime * 1000);
+                        $("#commentBar").after(
+                            `<div class="d-flex flex flex-start bg-dark bot-1">
                             <div class="container">
                                 <h6 class="fw-bold mb-1">${k[i].creatorMail}</h6>
                                 <div class="d-flex align-items-center mb-3">
                                     <p class="mb-0">
-                                        ${date.toLocaleString() }
+                                        ${date.toLocaleString()}
                                     </p>
                                 </div>
                                 <p class="mb-0">
@@ -20,10 +21,11 @@ function loadComments () {
                                 </p>
                             </div>
                         </div>`
-                    )
-                }
+                        )
+                    }
+                });
             });
-        });
+    }
 }
 $("#postComment").click(
     function () {