Quick Answer: ERR_CACHE_MISS almost always appears after resubmitting form data, usually by pressing the back button after submitting a form. Chrome tries to reload the page from its cache and the submitted data is no longer there. It’s rarely a sign of a real problem — reloading the page directly usually fixes it instantly.
What Causes This Error
- Pressing the back button after submitting a form (login, checkout, search)
- Browser cache cleared or expired mid-session while a page was still relying on it
- An extension interfering with how pages are cached or reloaded
- A corrupted browser profile cache, in rarer persistent cases
How to Fix It
Step 1: Reload the page directly
Press Ctrl + R or click the reload button instead of using the back button. This requests a fresh copy of the page instead of trying to pull the missing data from cache.
Step 2: Navigate to the page fresh
Open the site from a bookmark, the address bar, or a new tab rather than using back/forward navigation. This avoids the cache lookup entirely.
Step 3: Clear cache and cookies for the site
If it keeps happening on the same site, go to Settings > Privacy and security > Clear browsing data, select the site’s time range, and clear cached images and files. See our full guide on clearing cache and cookies for the exact steps.
Step 4: Disable extensions
Go to chrome://extensions and disable extensions one at a time, particularly ad blockers and privacy tools, which occasionally interfere with cache behavior.
Step 5: Test in an Incognito window
Open an Incognito window (Ctrl + Shift + N) and try the same action. If the error doesn’t appear there, an extension or stored site data is the cause.
Step 6: Update ChromeOS
Go to Settings > About ChromeOS > Check for updates. This error is occasionally tied to a bug in a specific Chrome version that gets patched in later releases.
Still Not Fixed?
If ERR_CACHE_MISS appears constantly across unrelated sites rather than just after a back-button press, your browser profile’s cache may be corrupted. Creating a new Chrome profile or user account on the Chromebook and testing there will confirm whether the issue is profile-specific.
FAQ
Does ERR_CACHE_MISS mean I lost data?
No. It only means the page can’t be reloaded from cache — it doesn’t affect anything you’ve already submitted or saved elsewhere.
Why does this only happen after pressing back?
Because the back button tries to restore the exact previous page state from cache, including form submissions, which browsers intentionally don’t keep cached for security and data-integrity reasons.
Is this a serious error?
No, it’s one of the more harmless Chrome errors. It’s a navigation quirk, not a sign of malware, a broken connection, or hardware trouble.
