diff --git a/.gitignore b/.gitignore
index e90b4d509..a7eb03c42 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,6 +32,7 @@ phpunit.xml
 .phpunit.cache/
 docker-compose/mysql/config/*.sql
 docker-compose/mysql/model/*.sql
+docker-compose.override.yml
 package.xml
 .env.dev
 rector.php
diff --git a/app/Http/Middleware/OAuth2BearerAccessTokenRequestValidator.php b/app/Http/Middleware/OAuth2BearerAccessTokenRequestValidator.php
index 502bb64eb..95e589bca 100644
--- a/app/Http/Middleware/OAuth2BearerAccessTokenRequestValidator.php
+++ b/app/Http/Middleware/OAuth2BearerAccessTokenRequestValidator.php
@@ -171,16 +171,22 @@ public function handle($request, Closure $next)
                 );
                 throw new InvalidGrantTypeException(OAuth2Protocol::OAuth2Protocol_Error_InvalidToken);
             }
-            if (
-                $token_info->getApplicationType() === 'JS_CLIENT'
-                && (is_null($origin) || empty($origin)|| str_contains($token_info->getAllowedOrigins(), $origin) === false )
-            ) {
+            if ($token_info->getApplicationType() === 'JS_CLIENT') {
                 //check origins
-                throw new OAuth2ResourceServerException(
-                    403,
-                    OAuth2Protocol::OAuth2Protocol_Error_UnauthorizedClient,
-                    sprintf('invalid origin %s - allowed ones (%s)', $origin, $token_info->getAllowedOrigins())
-                );
+                $allowedOrigins = array_filter(array_map(function ($o) {
+                    $o = trim($o);
+                    if ($o === '') return '';
+                    try { $o = (new Normalizer($o))->normalize(); } catch (\Throwable $e) {}
+                    return rtrim($o, '/');
+                }, explode(' ', $token_info->getAllowedOrigins() ?? '')));
+
+                if (is_null($origin) || empty($origin) || !in_array(rtrim($origin, '/'), $allowedOrigins, true)) {
+                    throw new OAuth2ResourceServerException(
+                        403,
+                        OAuth2Protocol::OAuth2Protocol_Error_UnauthorizedClient,
+                        sprintf('invalid origin %s - allowed ones (%s)', $origin, $token_info->getAllowedOrigins())
+                    );
+                }
             }
             //check scopes
             Log::debug('OAuth2BearerAccessTokenRequestValidator::handle checking token scopes ...');
diff --git a/tests/Unit/OAuth2BearerAccessTokenRequestValidatorTest.php b/tests/Unit/OAuth2BearerAccessTokenRequestValidatorTest.php
new file mode 100644
index 000000000..8f44e4561
--- /dev/null
+++ b/tests/Unit/OAuth2BearerAccessTokenRequestValidatorTest.php
@@ -0,0 +1,174 @@
+<?php namespace Tests\Unit;
+/**
+ * Copyright 2026 OpenStack Foundation
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+use App\Http\Middleware\OAuth2BearerAccessTokenRequestValidator;
+use App\Models\ResourceServer\IAccessTokenService;
+use App\Models\ResourceServer\IApiEndpoint;
+use App\Models\ResourceServer\IApiEndpointRepository;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Log;
+use Illuminate\Support\Facades\Route;
+use models\oauth2\IResourceServerContext;
+use Tests\TestCase;
+
+/**
+ * Subclass that bypasses getallheaders()/SERVER parsing by returning a fixed header map.
+ * $fixedHeaders must be assigned before parent::__construct() because the parent ctor
+ * calls $this->getHeaders() immediately.
+ */
+class TestableBearerValidator extends OAuth2BearerAccessTokenRequestValidator
+{
+    private array $fixedHeaders;
+
+    public function __construct(
+        array $fixedHeaders,
+        IResourceServerContext $context,
+        IApiEndpointRepository $endpoint_repository,
+        IAccessTokenService $token_service
+    ) {
+        $this->fixedHeaders = $fixedHeaders;
+        parent::__construct($context, $endpoint_repository, $token_service);
+    }
+
+    protected function getHeaders(): array
+    {
+        return $this->fixedHeaders;
+    }
+}
+
+/**
+ * Class OAuth2BearerAccessTokenRequestValidatorTest
+ *
+ * Verifies that the JS_CLIENT origin check correctly accepts normalized URLs
+ * and rejects bare hostnames or requests with no Origin header.
+ */
+final class OAuth2BearerAccessTokenRequestValidatorTest extends TestCase
+{
+    private const TOKEN           = 'test-bearer-token';
+    private const HOST            = 'example.com';
+    private const ALLOWED_ORIGINS = 'https://example.com https://foo.bar';
+
+    private IResourceServerContext  $context;
+    private IApiEndpointRepository  $endpointRepo;
+    private IAccessTokenService     $tokenService;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        Route::get('/api/test', fn() => 'ok');
+
+        $this->context = $this->createMock(IResourceServerContext::class);
+
+        $endpoint = $this->createMock(IApiEndpoint::class);
+        $endpoint->method('isActive')->willReturn(true);
+        $endpoint->method('getScopesNames')->willReturn(['openid']);
+
+        $this->endpointRepo = $this->createMock(IApiEndpointRepository::class);
+        $this->endpointRepo->method('getApiEndpointByUrlAndMethod')->willReturn($endpoint);
+
+        // AccessToken is final, so use an anonymous stub instead of createMock().
+        $tokenStub = new class {
+            public function getLifetime()            { return 3600; }
+            public function getAudience()            { return 'example.com'; }
+            public function getApplicationType()     { return 'JS_CLIENT'; }
+            public function getAllowedOrigins(): ?string { return 'https://example.com https://foo.bar'; }
+            public function getScope()               { return 'openid'; }
+            public function getClientId()            { return 'test-client'; }
+            public function getUserId(): ?int        { return null; }
+            public function getAllowedReturnUris()   { return ''; }
+        };
+
+        $this->tokenService = $this->createMock(IAccessTokenService::class);
+        $this->tokenService->method('get')->willReturn($tokenStub);
+
+        Log::shouldReceive('debug')->zeroOrMoreTimes();
+        Log::shouldReceive('warning')->zeroOrMoreTimes();
+        Log::shouldReceive('info')->zeroOrMoreTimes();
+        Log::shouldReceive('error')->zeroOrMoreTimes();
+    }
+
+    // -------------------------------------------------------------------------
+
+    private function buildValidator(string $originHeader = ''): TestableBearerValidator
+    {
+        $headers = ['authorization' => 'Bearer ' . self::TOKEN];
+        if ($originHeader !== '') {
+            $headers['origin'] = $originHeader;
+        }
+        return new TestableBearerValidator(
+            $headers,
+            $this->context,
+            $this->endpointRepo,
+            $this->tokenService
+        );
+    }
+
+    private function buildRequest(string $originHeader = ''): Request
+    {
+        $server = ['HTTP_HOST' => self::HOST];
+        if ($originHeader !== '') {
+            $server['HTTP_ORIGIN'] = $originHeader;
+        }
+        return Request::create('/api/test', 'GET', [], [], [], $server);
+    }
+
+    private function next(): \Closure
+    {
+        return fn($req) => new JsonResponse(['ok' => true], 200);
+    }
+
+    // -------------------------------------------------------------------------
+
+    public function test_exact_origin_url_is_accepted(): void
+    {
+        $this->context->expects($this->once())->method('setAuthorizationContext');
+
+        $response = $this->buildValidator('https://example.com')
+            ->handle($this->buildRequest('https://example.com'), $this->next());
+
+        $this->assertEquals(200, $response->getStatusCode());
+    }
+
+    public function test_trailing_slash_origin_is_accepted(): void
+    {
+        $this->context->expects($this->once())->method('setAuthorizationContext');
+
+        $response = $this->buildValidator('https://example.com/')
+            ->handle($this->buildRequest('https://example.com/'), $this->next());
+
+        $this->assertEquals(200, $response->getStatusCode());
+    }
+
+    public function test_bare_hostname_without_scheme_is_rejected(): void
+    {
+        $this->context->expects($this->never())->method('setAuthorizationContext');
+
+        $response = $this->buildValidator('example')
+            ->handle($this->buildRequest('example'), $this->next());
+
+        $this->assertEquals(403, $response->getStatusCode());
+    }
+
+    public function test_missing_origin_is_rejected(): void
+    {
+        $this->context->expects($this->never())->method('setAuthorizationContext');
+
+        $response = $this->buildValidator()
+            ->handle($this->buildRequest(), $this->next());
+
+        $this->assertEquals(403, $response->getStatusCode());
+    }
+}