diff --git a/app/models/embeddable_host.rb b/app/models/embeddable_host.rb
index 7c32a828796..447ee6c161a 100644
--- a/app/models/embeddable_host.rb
+++ b/app/models/embeddable_host.rb
@@ -32,6 +32,9 @@ class EmbeddableHost < ActiveRecord::Base
   end
 
   def self.url_allowed?(url)
+    # Work around IFRAME reload on WebKit where the referer will be set to the Forum URL
+    return true if url&.starts_with?(Discourse.base_url)
+
     uri = URI(URI.encode(url)) rescue nil
     uri.present? && record_for_url(uri).present?
   end
diff --git a/spec/models/embeddable_host_spec.rb b/spec/models/embeddable_host_spec.rb
index 700478871cd..2a7f964b533 100644
--- a/spec/models/embeddable_host_spec.rb
+++ b/spec/models/embeddable_host_spec.rb
@@ -78,6 +78,10 @@ describe EmbeddableHost do
       expect(EmbeddableHost.url_allowed?('http://eviltrout.com')).to eq(true)
       expect(EmbeddableHost.url_allowed?('http://discourse.org')).to eq(true)
     end
+
+    it 'always allow forum own URL' do
+      expect(EmbeddableHost.url_allowed?(Discourse.base_url)).to eq(true)
+    end
   end
 
   describe "path_whitelist" do