fix(audits): avoid false positives in 9ABE (#148)

Author: DoctorJohn

src/audits/server.ts

@@ -191,10 +191,11 @@ export function serverAudits(opts: ServerAuditOptions): Audit[] {
     // Request POST
     audit(
       '9ABE',
-      'MAY respond with 4xx status code if content-type is not supplied on POST requests',
+      'SHOULD respond with 4xx status code if content-type is not supplied on POST requests',
       async () => {
         const res = await fetchFn(await getUrl(opts.url), {
           method: 'POST',
+          body: JSON.stringify({ query: '{ __typename }' }),
         });
         ressert(res).status.toBeBetween(400, 499);
       },

tests/__snapshots__/audits.test.ts.snap

@@ -44,7 +44,7 @@ exports[`should not change globally unique audit ids 1`] = `
   },
   {
     "id": "9ABE",
-    "name": "MAY respond with 4xx status code if content-type is not supplied on POST requests",
+    "name": "SHOULD respond with 4xx status code if content-type is not supplied on POST requests",
   },
   {
     "id": "03D4",