diff --git a/modules/context/context.go b/modules/context/context.go
index 653a1895f..fd980fc6d 100755
--- a/modules/context/context.go
+++ b/modules/context/context.go
@@ -328,11 +328,7 @@ func Contexter() macaron.Handler {
 			}
 		}
 
-		if setting.IFrameURL != "" {
-			ctx.Resp.Header().Set(`X-Frame-Options`, `ALLOW-FROM `+setting.IFrameURL)
-		} else {
-			ctx.Resp.Header().Set(`X-Frame-Options`, `SAMEORIGIN`)
-		}
+		//ctx.Resp.Header().Set(`X-Frame-Options`, `SAMEORIGIN`)
 
 		ctx.Data["CsrfToken"] = html.EscapeString(x.GetToken())
 		ctx.Data["CsrfTokenHtml"] = template.HTML(`<input type="hidden" name="_csrf" value="` + ctx.Data["CsrfToken"].(string) + `">`)
diff --git a/modules/setting/setting.go b/modules/setting/setting.go
index 5775ca552..8622938e6 100755
--- a/modules/setting/setting.go
+++ b/modules/setting/setting.go
@@ -573,7 +573,6 @@ var (
 		OrgName  string
 		TeamName string
 	}{}
-	IFrameURL string
 )
 
 // DateLang transforms standard language locale name to corresponding value in datetime plugin.
@@ -1341,8 +1340,7 @@ func NewContext() {
 	sec = Cfg.Section("course")
 	Course.OrgName = sec.Key("org_name").MustString("")
 	Course.TeamName = sec.Key("team_name").MustString("")
-	sec = Cfg.Section("xFrame")
-	IFrameURL = sec.Key("url").MustString("")
+
 }
 
 func SetRadarMapConfig() {
diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini
index c6099b66e..1148f4ae0 100644
--- a/options/locale/locale_en-US.ini
+++ b/options/locale/locale_en-US.ini
@@ -394,7 +394,7 @@ lang_select_error = Select a language from the list.
 
 username_been_taken = The username is already taken.
 repo_name_been_taken = The repository name or path is already used.
-course_name_been_taken=The course path is already used.
+course_name_been_taken=The course name or path is already used.
 visit_rate_limit = Remote visit addressed rate limitation.
 2fa_auth_required = Remote visit required two factors authentication.
 org_name_been_taken = The organization name is already taken.
diff --git a/options/locale/locale_zh-CN.ini b/options/locale/locale_zh-CN.ini
index dbf417104..08f11b833 100755
--- a/options/locale/locale_zh-CN.ini
+++ b/options/locale/locale_zh-CN.ini
@@ -399,7 +399,7 @@ lang_select_error=从列表中选出语言
 
 username_been_taken=用户名已被使用。
 repo_name_been_taken=项目名称或项目路径已被使用。
-course_name_been_taken=课程名称或路径已被使用。
+course_name_been_taken=课程名称或地址已被使用。
 visit_rate_limit=远程访问达到速度限制。
 2fa_auth_required=远程访问需要双重验证。
 org_name_been_taken=组织名称已被使用。