去掉iframe配置

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) + `">`)

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() {