From 9adb1092668ecec0cfb0418270be787ae5f4b87a Mon Sep 17 00:00:00 2001
From: Ardis Lu <ardisglu@gmail.com>
Date: Sun, 1 Jan 2023 16:04:56 -0800
Subject: [PATCH] Avoid caching non-GET request

---
 sw.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sw.js b/sw.js
index 94bd614..87c02cf 100644
--- a/sw.js
+++ b/sw.js
@@ -1,4 +1,4 @@
-const cacheName = 'v4';
+const cacheName = 'v5';
 const cacheChannel = new BroadcastChannel('cache');
 
 async function revalidate(request) {
@@ -28,6 +28,10 @@ async function revalidate(request) {
 // Implements stale-while-revalidate strategy: if there's anything in the cache, return that immediately.
 // Wait for the origin server's response in parallel and notify cacheChannel if the cache changed.
 globalThis.addEventListener('fetch', event => {
+  if (event.request.method !== 'GET') {
+    return;
+  }
+
   event.respondWith(caches.match(event.request).then(cacheResponse => {
     const originResponse = revalidate(event.request);
     return cacheResponse === undefined ? originResponse : cacheResponse;
-- 
2.47.3