Explicitly no cache on /api/events (#29549)

middleware/api/events.js

@@ -4,19 +4,20 @@ import Ajv from 'ajv'
 import addFormats from 'ajv-formats'
 import { eventSchema, hydroNames } from '../../lib/schema-event.js'
 import catchMiddlewareError from '../catch-middleware-error.js'
-
-const OMIT_FIELDS = ['type']
-
-const ajv = new Ajv()
-addFormats(ajv)
+import { cacheControlFactory } from '../cache-control.js'
 
 const router = express.Router()
+const noCacheControl = cacheControlFactory(0)
+const ajv = new Ajv()
+addFormats(ajv)
+const OMIT_FIELDS = ['type']
 
 router.post(
   '/',
-  catchMiddlewareError(async function postEvents(req, res, next) {
+  catchMiddlewareError(async function postEvents(req, res) {
     const isDev = process.env.NODE_ENV === 'development'
     const fields = omit(req.body, '_csrf')
+    noCacheControl(res)
 
     if (!ajv.validate(eventSchema, fields)) {
       return res.status(400).json(isDev ? ajv.errorsText() : {})