From 96238a934162a473d5b71fbb487e471e5af61ec2 Mon Sep 17 00:00:00 2001
From: Frank Tovar <mail@franktovar.de>
Date: Thu, 26 Feb 2026 09:04:50 +0100
Subject: [PATCH] Guard Home JS interop during prerender disposal

---
 RpgRoller/Components/Pages/Home.razor.cs | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/RpgRoller/Components/Pages/Home.razor.cs b/RpgRoller/Components/Pages/Home.razor.cs
index 9ee7153..75297a0 100644
--- a/RpgRoller/Components/Pages/Home.razor.cs
+++ b/RpgRoller/Components/Pages/Home.razor.cs
@@ -69,6 +69,7 @@ public partial class Home
     private Guid? EditingCharacterId { get; set; }
     private Guid? EditingSkillId { get; set; }
     private bool StateRefreshInProgress { get; set; }
+    private bool HasInteractiveRenderStarted { get; set; }
     private DotNetObjectReference<Home>? DotNetRef { get; set; }
 
     [Inject]
@@ -104,6 +105,8 @@ public partial class Home
 
     protected override async Task OnAfterRenderAsync(bool firstRender)
     {
+        HasInteractiveRenderStarted = true;
+
         if (!firstRender)
         {
             return;
@@ -901,6 +904,11 @@ public partial class Home
 
     private async Task StopStateEventsAsync()
     {
+        if (!HasInteractiveRenderStarted)
+        {
+            return;
+        }
+
         try
         {
             await JS.InvokeVoidAsync("rpgRollerApi.stopStateEvents");
@@ -908,6 +916,9 @@ public partial class Home
         catch (JSDisconnectedException)
         {
         }
+        catch (InvalidOperationException ex) when (IsStaticRenderInteropException(ex))
+        {
+        }
     }
 
     public async ValueTask DisposeAsync()
@@ -916,6 +927,11 @@ public partial class Home
         DotNetRef?.Dispose();
     }
 
+    private static bool IsStaticRenderInteropException(InvalidOperationException exception)
+    {
+        return exception.Message.Contains("statically rendered", StringComparison.OrdinalIgnoreCase);
+    }
+
     private async Task<T> RequestAsync<T>(string method, string path, object? payload = null)
     {
         var response = await JS.InvokeAsync<JsApiResponse>("rpgRollerApi.request", method, path, payload);