fix tree cache

README.md

@@ -90,7 +90,7 @@ _instructions for google oauth2 setup borrowed from [oauth2_proxy](https://githu
 1. Set **"Display Name"** and **"Contact email"**
 1. Choose **"Facebook Login"** and then **"Web"**
 1. Set "Site URL" to your domain, ex: `https://remark42.mysite.com`
-1. Under **"Facebook"/"Settings"** fill "Valid OAuth redirect URIs" with your callback url constructed as domain + `/auth/facebook/callback`
+1. Under **"Facebook login"** / **"Settings"** fill "Valid OAuth redirect URIs" with your callback url constructed as domain + `/auth/facebook/callback`
 1. Select **"App Review"** and turn public flag on. This step may ask you to provide a link to your privacy policy.
 
 ### Frontend

app/rest/server.go

@@ -187,8 +187,9 @@ func (s *Server) findCommentsCtrl(w http.ResponseWriter, r *http.Request) {
 	comments = s.mod.maskBlockedUsers(comments)
 
 	if r.URL.Query().Get("format") == "tree" {
-		s.respCache.Set(cacheKey, comments, time.Hour)
-		renderJSONWithHTML(w, r, format.MakeTree(comments, r.URL.Query().Get("sort")))
+		treeComments := format.MakeTree(comments, r.URL.Query().Get("sort"))
+		s.respCache.Set(cacheKey, treeComments, time.Hour)
+		renderJSONWithHTML(w, r, treeComments)
 		return
 	}