Change HTTP code returned for routes rejected in reverse proxy setup

app/Http/Middleware/RejectIfReverseProxy.php

@@ -20,7 +20,7 @@ class RejectIfReverseProxy
 
             return response()->json([
                 'message' => __('errors.unsupported_with_reverseproxy'),
-            ], 400);
+            ], 405);
         }
 
         return $next($request);

resources/js_vue3/views/settings/OAuth.vue

@@ -46,8 +46,8 @@
             })
         })
         .catch(error => {
-            if( error.response.status === 400 ) {
-                // The backend returns a 400 response for routes with the
+            if( error.response.status === 405 ) {
+                // The backend returns a 405 response for routes with the
                 // rejectIfReverseProxy middleware
                 isRemoteUser.value = true
             }

resources/js_vue3/views/settings/WebAuthn.vue

@@ -94,8 +94,8 @@
             credentials.value = response.data
         })
         .catch(error => {
-            if( error.response.status === 400 ) {
-                // The backend returns a 400 response for routes with the
+            if( error.response.status === 405 ) {
+                // The backend returns a 405 response for routes with the
                 // rejectIfReverseProxy middleware
                 isRemoteUser.value = true
             }

tests/Feature/Http/Auth/WebAuthnManageControllerTest.php

@@ -136,7 +136,7 @@ class WebAuthnManageControllerTest extends FeatureTestCase
     {
         $response = $this->actingAs($this->user, 'reverse-proxy-guard')
             ->json('GET', '/webauthn/credentials')
-            ->assertStatus(400);
+            ->assertStatus(405);
     }
 
     /**
@@ -146,7 +146,7 @@ class WebAuthnManageControllerTest extends FeatureTestCase
     {
         $response = $this->actingAs($this->user, 'reverse-proxy-guard')
             ->json('PATCH', '/webauthn/credentials/fqsdfqsdf/name')
-            ->assertStatus(400);
+            ->assertStatus(405);
     }
 
     /**
@@ -156,7 +156,7 @@ class WebAuthnManageControllerTest extends FeatureTestCase
     {
         $response = $this->actingAs($this->user, 'reverse-proxy-guard')
             ->json('DELETE', '/webauthn/credentials/dcnskldjnkljsrn')
-            ->assertStatus(400);
+            ->assertStatus(405);
     }
 
     /**