Add Blazor WASM detection to set IsGlobalModeEnabled to true (#1931)

CHANGELOG.md

@@ -17,6 +17,7 @@
 - Dont send transaction for OPTIONS web request ([#1921](https://github.com/getsentry/sentry-dotnet/pull/1921))
 - Fix missing details when aggregate exception is filtered out ([#1922](https://github.com/getsentry/sentry-dotnet/pull/1922))
 - Exception filters should consider child exceptions of an `AggregateException` ([#1924](https://github.com/getsentry/sentry-dotnet/pull/1924))
+- Add Blazor WASM detection to set IsGlobalModeEnabled to true ([#1931](https://github.com/getsentry/sentry-dotnet/pull/1931))
 
 ## 3.21.0
 

samples/Sentry.Samples.AspNetCore.Blazor.Wasm/Program.cs

@@ -1,4 +1,5 @@
 using System.Net.Http;
+using System.Runtime.InteropServices;
 using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
 using Sentry.Samples.AspNetCore.Blazor.Wasm;
 
@@ -7,6 +8,8 @@
 {
     o.Dsn = "https://eb18e953812b41c3aeb042e666fd3b5c@o447951.ingest.sentry.io/5428537";
     o.Debug = true;
+    //IsGlobalModeEnabled will be true for Blazor WASM
+    Debug.Assert(o.IsGlobalModeEnabled);
 });
 try
 {
@@ -16,8 +19,11 @@
     // Captures logError and higher as events
     builder.Logging.AddSentry(o => o.InitializeSdk = false);
 
-    builder.Services.AddScoped(_ => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
-
+    builder.Services.AddScoped(_ =>
+        new HttpClient
+        {
+            BaseAddress = new(builder.HostEnvironment.BaseAddress)
+        });
     await builder.Build().RunAsync();
 }
 catch (Exception e)

src/Sentry/PlatformAbstractions/RuntimeExtensions.cs

@@ -32,6 +32,13 @@ public static bool IsNetCore(this Runtime runtime) =>
         /// <returns>True if it's Mono, otherwise false.</returns>
         public static bool IsMono(this Runtime runtime) => runtime.StartsWith("Mono");
 
+        /// <summary>
+        /// Is the runtime instance Browser Web Assembly.
+        /// </summary>
+        /// <param name="runtime">The runtime instance to check.</param>
+        /// <returns>True if it's Browser WASM, otherwise false.</returns>
+        internal static bool IsBrowserWasm(this Runtime runtime) => runtime.Identifier == "browser-wasm";
+
         private static bool StartsWith(this Runtime? runtime, string runtimeName) =>
             runtime?.Name?.StartsWith(runtimeName, StringComparison.OrdinalIgnoreCase) == true ||
             runtime?.Raw?.StartsWith(runtimeName, StringComparison.OrdinalIgnoreCase) == true;

src/Sentry/SentryOptions.cs

@@ -59,9 +59,9 @@ public bool IsGlobalModeEnabled
         /// <summary>
         /// Specifies whether to use global scope management mode.
         /// Should be <c>true</c> for client applications and <c>false</c> for server applications.
-        /// The default is <c>false</c>.
+        /// The default is <c>false</c>. The default for Blazor WASM, MAUI, and Mobile apps is <c>true</c>.
         /// </summary>
-        public bool IsGlobalModeEnabled { get; set; }
+        public bool IsGlobalModeEnabled { get; set; } = Runtime.Current.IsBrowserWasm();
 #endif
 
         /// <summary>