Fix SimpleCache example (#580)

Author: acme

CHANGELOG.md

@@ -24,7 +24,7 @@ import { SimpleCache } from 'fastly:cache';
 addEventListener('fetch', event => event.respondWith(app(event)));
 
 async function app(event) {
-  const url = new URL(event.request);
+  const url = new URL(event.request.url);
   const path = url.pathname;
   if (url.searchParams.has('delete')) {
 -    SimpleCache.delete(path);

documentation/docs/fastly:cache/SimpleCache/SimpleCache.mdx

@@ -23,7 +23,7 @@ import { SimpleCache } from 'fastly:cache';
 addEventListener('fetch', event => event.respondWith(app(event)));
 
 async function app(event) {
-  const path = new URL(event.request).pathname;
+  const path = new URL(event.request.url).pathname;
   let page = SimpleCache.getOrSet(path, async () => {
     return {
       value: await render(path),

documentation/docs/fastly:cache/SimpleCache/getOrSet.mdx

@@ -57,7 +57,7 @@ import { SimpleCache } from 'fastly:cache';
 addEventListener('fetch', event => event.respondWith(app(event)));
 
 async function app(event) {
-  const path = new URL(event.request).pathname;
+  const path = new URL(event.request.url).pathname;
   let page = SimpleCache.getOrSet(path, async () => {
     return {
       value: await render(path),

documentation/docs/fastly:cache/SimpleCache/purge.mdx

@@ -51,7 +51,7 @@ import { SimpleCache } from 'fastly:cache';
 addEventListener('fetch', event => event.respondWith(app(event)));
 
 async function app(event) {
-  const url = new URL(event.request);
+  const url = new URL(event.request.url);
   const path = url.pathname;
   if (url.searchParams.has('purge')) {
     SimpleCache.purge(path, { scope: "global" });

documentation/docs/fastly:cache/SimpleCache/set.mdx

@@ -54,7 +54,7 @@ import { SimpleCache } from 'fastly:cache';
 addEventListener('fetch', event => event.respondWith(app(event)));
 
 async function app(event) {
-  const path = new URL(event.request).pathname;
+  const path = new URL(event.request.url).pathname;
   let page = SimpleCache.get(path);
   if (!page) {
     page = await render(path);