ERR_CACHE_MISS is a Chrome browser error that appears when the browser needs to resubmit data to load a page but the cached version of that data is no longer available. You will typically see this error after pressing the back button on a page that was loaded through a form submission (POST request). Chrome refuses to automatically resubmit your data because doing so could duplicate an action like a payment or registration.
This error is frustrating but rarely indicates a serious problem. It is one of the most common Chrome errors, with the message “Confirm Form Resubmission” sometimes appearing alongside it. The fix is usually simple and takes less than two minutes.
What Causes ERR_CACHE_MISS
ERR_CACHE_MISS occurs when Chrome’s cache does not contain the data needed to reload a page without resending a form. The most common trigger is pressing the back button after submitting a form, login page, or checkout process. Chrome protects you by refusing to automatically resubmit POST data, because resending could duplicate transactions, create duplicate accounts, or trigger unintended actions on the server.
Other causes include corrupted browser cache data, conflicting browser extensions that interfere with caching, outdated Chrome version with known cache handling bugs, and websites with misconfigured cache-control headers that prevent proper caching of POST responses.
Fix 1: Refresh the Page
The simplest fix is to reload the page instead of using the back button. Press F5 or click the refresh icon. If Chrome asks you to confirm form resubmission, click “Continue.” For a hard refresh that bypasses all cached data, press Ctrl+Shift+R (Windows) or Cmd+Shift+R (macOS). This forces Chrome to fetch everything fresh from the server.
Fix 2: Clear Browser Cache
Corrupted cache entries cause persistent ERR_CACHE_MISS errors. Go to Chrome Settings, Privacy and Security, Clear browsing data. Select “All time” as the time range, check “Cached images and files” and “Cookies and other site data,” then click Clear data. Restart Chrome completely after clearing. This removes all cached data and forces Chrome to build a fresh cache.
Fix 3: Disable Browser Extensions
Extensions that modify network requests or caching behavior can trigger ERR_CACHE_MISS. Open Chrome in Incognito mode (Ctrl+Shift+N) which disables all extensions by default. If the page works in Incognito, one of your extensions is the problem. Go to chrome://extensions, disable them one by one, and test after each to find the culprit. Ad blockers and privacy extensions are the most common offenders.
Fix 4: Update Chrome
Outdated Chrome versions may have cache handling bugs that are fixed in newer releases. Go to Menu (three dots), Help, About Google Chrome. Chrome checks for updates automatically and installs them. Restart the browser after the update completes. If you are running Chrome 90 or older, updating is especially important because significant cache improvements were introduced in later versions.
Fix 5: Reset Chrome Settings
If the error persists across multiple websites, corrupted Chrome settings may be the cause. Go to Settings, Reset and clean up, Restore settings to their original defaults. This disables all extensions, resets startup pages, clears temporary data, and restores default Chrome flags. Your bookmarks and saved passwords are preserved.
Fix 6: Disable Cache in Developer Tools
For web developers testing their sites, you can bypass the cache entirely. Open Developer Tools (F12), go to the Network tab, and check “Disable cache.” This option only works while Developer Tools are open and forces every request to go directly to the server, bypassing Chrome’s cache completely. This is useful for diagnosing whether the error is cache-related or server-related.
Fix 7: Flush DNS and Socket Pools
Network-level caching issues can contribute to ERR_CACHE_MISS. Navigate to chrome://net-internals/#dns and click “Clear host cache.” Then go to chrome://net-internals/#sockets and click “Flush socket pools.” On Windows, also open Command Prompt and run “ipconfig /flushdns” to clear the system DNS cache. Restart Chrome after completing all three steps.
Frequently Asked Questions
Is ERR_CACHE_MISS dangerous?
No. ERR_CACHE_MISS is a browser-level caching error, not a security threat. It means Chrome cannot find cached data needed to reload a page. No data is compromised and your device is not at risk. The error is a protective measure that prevents accidental resubmission of form data.
Why does ERR_CACHE_MISS only happen on certain websites?
Websites that rely heavily on POST forms (login pages, checkout flows, search forms) are more likely to trigger ERR_CACHE_MISS when you use the back button. Sites with proper cache-control headers and POST-redirect-GET patterns rarely cause this error because they handle form resubmission gracefully on the server side.
Can ERR_CACHE_MISS be caused by my internet connection?
Indirectly, yes. An unstable internet connection can cause incomplete page loads where the cache data is partially written and later unreadable. However, the primary cause is almost always browser caching behavior, not network issues. Clearing the cache resolves it regardless of your connection quality.
