Don't send caches which are too big to the client

Author: Ives van Hoorne

packages/app/src/sandbox/eval/cache.js

@@ -9,6 +9,7 @@ const debug = _debug('cs:compiler:cache');
 
 const host = process.env.CODESANDBOX_HOST;
 
+const MAX_CACHE_SIZE = 1024 * 1024 * 7;
 let APICacheUsed = false;
 
 try {
@@ -71,6 +72,10 @@ export async function saveCache(
   if (shouldSaveOnlineCache(firstRun, changes) && SCRIPT_VERSION) {
     const stringifiedManagerState = JSON.stringify(managerState);
 
+    if (stringifiedManagerState.length > MAX_CACHE_SIZE) {
+      return Promise.resolve(false);
+    }
+
     debug(
       'Saving cache of ' +
         (stringifiedManagerState.length / 1024).toFixed(2) +