fix: use normalized headers

This ensures support for HTTP/2
thank you @KABBOUCHI !

providers/InertiaProvider/InertiaProvider.ts

@@ -174,7 +174,7 @@ export default class InertiaProvider {
     Response.macro(
       'redirect',
       function (path?: string, forwardQueryString: boolean = false, statusCode = 302): RedirectContract | void {
-        const isInertia = this.request.rawHeaders.includes(HEADERS.INERTIA_HEADER);
+        const isInertia = this.request.headers[HEADERS.INERTIA_HEADER];
         const method = this.request.method;
         let finalStatusCode = statusCode;
 

src/utils.ts

@@ -1,8 +1,8 @@
 export enum HEADERS {
-  INERTIA_HEADER = 'X-Inertia',
-  INERTIA_PARTIAL_DATA = 'X-Inertia-Partial-Data',
-  INERTIA_PARTIAL_DATA_COMPONENT = 'X-Inertia-Partial-Component',
-  INERTIA_VERSION = 'X-Inertia-Version',
-  INERTIA_LOCATION = 'X-Inertia-Location',
-  VARY = 'Vary',
+  INERTIA_HEADER = 'x-inertia',
+  INERTIA_PARTIAL_DATA = 'x-inertia-partial-data',
+  INERTIA_PARTIAL_DATA_COMPONENT = 'x-inertia-partial-component',
+  INERTIA_VERSION = 'x-inertia-version',
+  INERTIA_LOCATION = 'x-inertia-location',
+  VARY = 'vary',
 }

test/validation.spec.ts

@@ -30,6 +30,7 @@ test.group('Validation negotiator', (group) => {
       });
     }
   });
+
   test('Should use vanilla validator for HTML requests', async (assert) => {
     const app = await setup();
     const ctx = app.container.use('Adonis/Core/HttpContext').create('/', {});