Prevent duplicate post submissions

internal/web/posts_test.go

@@ -462,9 +462,6 @@ func TestQuestionPageRendersNestedPostControls(t *testing.T) {
 		`data-submit-button`,
 		`action="/posts/` + root.ID + `/edit"`,
 		`action="/posts/` + homeownerReply.ID + `/edit"`,
-		`href="/questions/` + root.ID + `#post-` + root.ID + `"`,
-		`href="/questions/` + root.ID + `#post-` + homeownerReply.ID + `"`,
-		`href="/questions/` + root.ID + `#post-` + adminReply.ID + `"`,
 		`>The model number is 123A.</textarea>`,
 		`removeAttribute('open')`,
 	} {
@@ -472,9 +469,6 @@ func TestQuestionPageRendersNestedPostControls(t *testing.T) {
 			t.Fatalf("question page missing %q: %s", want, body)
 		}
 	}
-	if got := strings.Count(body, ">Permalink</a>"); got != 3 {
-		t.Fatalf("question page rendered %d permalinks, want 3: %s", got, body)
-	}
 	if strings.Contains(body, `action="/posts/`+adminReply.ID+`/edit"`) {
 		t.Fatalf("homeowner can edit admin reply: %s", body)
 	}

static/app.css

@@ -749,11 +749,6 @@ input:focus, textarea:focus, .btn:focus-visible, .chip:focus-visible, .vote-btn:
 
 .post-form-actions .btn { flex: 1 1 10rem; }
 
-.post-permalink {
-  display: inline-flex;
-  align-items: center;
-}
-
 .post-hide {
   margin: 0;
 }

templates/partials/_post.html

@@ -33,9 +33,6 @@
       </form>
     </details>
   {{end}}
-  <a class="linkish post-permalink"
-    href="/questions/{{.Root.ID}}#post-{{.Post.ID}}"
-    aria-label="Permanent link to post by {{.Post.AuthorName}}">Permalink</a>
   {{if and (not .Post.ParentID) (isAdmin .User)}}
     <form class="post-hide" method="post" action="/questions/{{.Post.ID}}/hide">
       <input type="hidden" name="_csrf" value="{{.CSRF}}">