SeleniumHQ
diff --git a/‎dotnet/src/webdriver/Chrome/ChromeOptions.cs‎
Lines changed: 19 additions & 0 deletions b/‎dotnet/src/webdriver/Chrome/ChromeOptions.cs‎
Lines changed: 19 additions & 0 deletions
diff --git a/‎dotnet/test/chrome/SpecCompliantChromeDriver.cs‎
Lines changed: 16 additions & 0 deletions b/‎dotnet/test/chrome/SpecCompliantChromeDriver.cs‎
Lines changed: 16 additions & 0 deletions
diff --git a/‎dotnet/test/common/appconfig.json‎
Lines changed: 7 additions & 0 deletions b/‎dotnet/test/common/appconfig.json‎
Lines changed: 7 additions & 0 deletions
@@ -72,8 +72,10 @@ public class ChromeOptions : DriverOptions
         private const string MobileEmulationChromeOption = "mobileEmulation";
         private const string PerformanceLoggingPreferencesChromeOption = "perfLoggingPrefs";
         private const string WindowTypesChromeOption = "windowTypes";
+        private const string UseSpecCompliantProtocolOption = "w3c";
 
         private bool leaveBrowserRunning;
+        private bool useSpecCompliantProtocol;
         private string binaryLocation;
         private string debuggerAddress;
         private string minidumpPath;
@@ -108,6 +110,7 @@ public ChromeOptions() : base()
             this.AddKnownCapabilityName(ChromeOptions.MobileEmulationChromeOption, "EnableMobileEmulation method");
             this.AddKnownCapabilityName(ChromeOptions.PerformanceLoggingPreferencesChromeOption, "PerformanceLoggingPreferences property");
             this.AddKnownCapabilityName(ChromeOptions.WindowTypesChromeOption, "AddWindowTypes method");
+            this.AddKnownCapabilityName(ChromeOptions.UseSpecCompliantProtocolOption, "UseSpecCompliantProtocol property");
         }
 
         /// <summary>
@@ -184,6 +187,17 @@ public ChromePerformanceLoggingPreferences PerformanceLoggingPreferences
             set { this.perfLoggingPreferences = value; }
         }
 
+        /// <summary>
+        /// Gets or sets a value indicating whether the <see cref="ChromeDriver"/> instance
+        /// should use the legacy OSS protocol dialect or a dialect compliant with the W3C
+        /// WebDriver Specification.
+        /// </summary>
+        public bool UseSpecCompliantProtocol
+        {
+            get { return this.useSpecCompliantProtocol; }
+            set { this.useSpecCompliantProtocol = value; }
+        }
+
         /// <summary>
         /// Adds a single argument to the list of arguments to be appended to the Chrome.exe command line.
         /// </summary>
@@ -596,6 +610,11 @@ private Dictionary<string, object> BuildChromeOptionsDictionary()
                 chromeOptions[DetachChromeOption] = this.leaveBrowserRunning;
             }
 
+            if (this.useSpecCompliantProtocol)
+            {
+                chromeOptions[UseSpecCompliantProtocolOption] = this.useSpecCompliantProtocol;
+            }
+
             if (!string.IsNullOrEmpty(this.debuggerAddress))
             {
                 chromeOptions[DebuggerAddressChromeOption] = this.debuggerAddress;
 
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OpenQA.Selenium.Chrome
+{
+    public class SpecCompliantChromeDriver : ChromeDriver
+    {
+        public SpecCompliantChromeDriver(ChromeDriverService service) :
+            base(service, new ChromeOptions() { UseSpecCompliantProtocol = true })
+        {
+        }
+    }
+}
@@ -19,6 +19,13 @@
       "RemoteCapabilities": "chrome"
     },
 
+    "ChromeSpec": {
+      "DriverTypeName": "OpenQA.Selenium.Chrome.SpecCompliantChromeDriver",
+      "AssemblyName": "WebDriver.Chrome.Tests",
+      "BrowserValue": "Chrome",
+      "RemoteCapabilities": "chrome"
+    },
+
     "IE": {
       "DriverTypeName": "OpenQA.Selenium.IE.InternetExplorerDriver",
       "AssemblyName": "WebDriver",