Core - EvaluateScriptAsPromiseAsync not working when JavascriptBindingApiGlobalObjectName specified

Resolves #3281

Author: amaitland

CefSharp.Test/OffScreen/OffScreenBrowserBasicFacts.cs

@@ -200,6 +200,29 @@ public async Task CanEvaluateScriptAsyncWithEncodedStringArguments()
             }
         }
 
+        [Theory]
+        [InlineData("lowerCustom")]
+        [InlineData("UpperCustom")]
+        public async Task CanEvaluateScriptAsPromiseAsyncJavascriptBindingApiGlobalObjectName(string rootObjName)
+        {
+            using (var browser = new ChromiumWebBrowser("http://www.google.com", automaticallyCreateBrowser:false))
+            {
+                browser.JavascriptObjectRepository.Settings.JavascriptBindingApiGlobalObjectName = rootObjName;
+                browser.CreateBrowser();
+
+                await browser.LoadPageAsync();
+
+                var mainFrame = browser.GetMainFrame();
+                Assert.True(mainFrame.IsValid);
+
+                var javascriptResponse = await browser.EvaluateScriptAsPromiseAsync("return new Promise(function(resolve, reject) { resolve(42); });");
+
+                Assert.True(javascriptResponse.Success);
+
+                Assert.Equal("42", javascriptResponse.Result.ToString());
+            }
+        }
+
         [Theory]
         [InlineData("return 42;", true, "42")]
         [InlineData("return new Promise(function(resolve, reject) { resolve(42); });", true, "42")]

CefSharp/WebBrowserExtensions.cs

@@ -1014,7 +1014,7 @@ public static Task<JavascriptResponse> EvaluateScriptAsPromiseAsync(this IWebBro
         /// When the promise either trigger then/catch this returned Task will be completed.
         /// </summary>
         /// <exception cref="ArgumentOutOfRangeException">Thrown when one or more arguments are outside the required range.</exception>
-        /// <param name="chromiumWebBrowser">The ChromiumWebBrowser instance this method extends.</param>
+        /// <param name="frame">The <seealso cref="IFrame"/> instance this method extends.</param>
         /// <param name="script">The Javascript code that should be executed.</param>
         /// <param name="timeout">(Optional) The timeout after which the Javascript code execution should be aborted.</param>
         /// <returns>
@@ -1039,11 +1039,11 @@ private static string GetPromiseHandlerScript(string script, string javascriptBi
 
                 if (char.IsLower(internalJsFunctionName[0]))
                 {
-                    internalJsFunctionName += "sendEvalScriptResponse";
+                    internalJsFunctionName += ".sendEvalScriptResponse";
                 }
                 else
                 {
-                    internalJsFunctionName += "SendEvalScriptResponse";
+                    internalJsFunctionName += ".SendEvalScriptResponse";
                 }
             }
             var promiseHandlerScript = "let innerImmediatelyInvokedFuncExpression = (function() { " + script + " })(); Promise.resolve(innerImmediatelyInvokedFuncExpression).then((val) => " + internalJsFunctionName + "(cefSharpInternalCallbackId, true, val)).catch ((reason) => " + internalJsFunctionName + "(cefSharpInternalCallbackId, false, String(reason))); return 'CefSharpDefEvalScriptRes';";