diff --git a/specs/OriginSettings.md b/specs/OriginSettings.md
new file mode 100644
index 00000000..14a0156a
--- /dev/null
+++ b/specs/OriginSettings.md
@@ -0,0 +1,104 @@
+Origin Settings
+===
+
+# Background
+Purpose of this API is to provide devloper the ability to control different security related
+features by origins. Developer can chose to trust a origin, for example 'microsoft.com' and
+toggle differnt security features for this origin. If user navigate to such origin, settings
+like auto audio play can be applied.
+
+# Examples
+## WinRT and .NET   
+```c#
+
+```
+
+## Win32 C++
+```cpp
+
+```
+
+# API Notes
+
+See [API Details](#api-details) section below for API reference.
+
+# API Details
+## Win32 C++
+
+```c++
+interface ICoreWebView2OriginSetting;
+interface ICoreWebView2Profile21;
+
+[v1_enum]
+typedef enum COREWEBVIEW2_ORIGIN_SETTING_STATE {
+  COREWEBVIEW2_ORIGIN_SETTING_STATE_DEFAULT,
+  COREWEBVIEW2_ORIGIN_SETTING_STATE_ON,
+  COREWEBVIEW2_ORIGIN_SETTING_STATE_OFF,
+} COREWEBVIEW2_ORIGIN_SETTING_STATE;
+
+
+[uuid(e8240179-1b27-5ce2-84b2-ea187e3e91ec), object, pointer_default(unique)]
+interface ICoreWebView2OriginSetting : IUnknown {
+  // Origins that match a certain pattern
+  [propget] HRESULT OriginMatch([out, retval] LPWSTR* value);
+  [propput] HRESULT OriginMatch([in] LPCWSTR value);
+  
+  // Growing list of features that developer can decide to toggle the state.
+  // Once enable, uri matching the above origin will grant developer the ability to accessing these features.
+  // All feature default to be disabled by default.
+  [propget] HRESULT EnhancedSecurityMode([out, retval] COREWEBVIEW2_ORIGIN_SETTING_STATE* value);
+  [propput] HRESULT EnhancedSecurityMode([in] COREWEBVIEW2_ORIGIN_SETTING_STATE value);
+  [propget] HRESULT SmartScreen([out, retval] COREWEBVIEW2_ORIGIN_SETTING_STATE* value);
+  [propput] HRESULT SmartScreen([in] COREWEBVIEW2_ORIGIN_SETTING_STATE value);
+  [propget] HRESULT SystemAccentColor([out, retval] COREWEBVIEW2_ORIGIN_SETTING_STATE* value);
+  [propput] HRESULT SystemAccentColor([in] COREWEBVIEW2_ORIGIN_SETTING_STATE value);
+  [propget] HRESULT MediaAutoPlay([out, retval] COREWEBVIEW2_ORIGIN_SETTING_STATE* value);
+  [propput] HRESULT MediaAutoPlay([in] COREWEBVIEW2_ORIGIN_SETTING_STATE value);
+}
+
+[uuid(558ba548-eb04-4d92-9207-3b1c838878bd), object, pointer_default(unique)]
+interface ICoreWebView2Profile21 : IUnknown {
+  // Array of origin settings.
+  HRESULT GetOriginSettings(
+      [out] UINT32* count,
+      [out] ICoreWebView2OriginSetting*** originSettings);
+  // Set the array of origin settings to use.
+  HRESULT SetOriginSettings(
+      [in] UINT32 count,
+      [in] const ICoreWebView2OriginSetting** originSettings);
+}
+```
+
+## .NET and WinRT
+
+```c#
+namespace Microsoft.Web.WebView2.Core
+{
+    // ...
+
+    enum CoreWebView2OriginSettingState
+    {
+        Default = 0,
+        On = 1,
+        Off = 2,
+    };
+
+    runtimeclass CoreWebView2Profile
+    {
+        IVector<CoreWebView2OriginSetting> OriginSettings { get; set; };
+
+        // ...
+    }
+
+    runtimeclass CoreWebView2OriginSetting
+    {
+        String OriginMatch { get; };
+        CoreWebView2OriginSettingState EnhancedSecurityMode { get; set; };
+        CoreWebView2OriginSettingState SmartScreen { get; set; };
+        CoreWebView2OriginSettingState SystemAccentColor { get; set; };
+        CoreWebView2OriginSettingState MediaAutoPlay { get; set; };
+    }
+
+    // ...
+}
+```
\ No newline at end of file