Table of Contents
Introduction
If ERR_CACHE_MISS showed up right after you clicked the back button following a form submission, that’s almost certainly the cause — Chrome is refusing to resubmit cached form data without your confirmation. Here’s why it happens and the fastest ways to clear it.
What Causes ERR_CACHE_MISS
● Most common: navigating back/forward after submitting a form, triggering a “confirm form resubmission” conflict
● Browser unable to retrieve cache files from the site
● Browser bugs, corrupted data, or problematic extensions
● Website-side coding or PHP errors
Step-by-Step Fixes
1. Reload the page using the refresh button or F5 — resolves most temporary cases immediately
2. Update Chrome via Settings > About Chrome to rule out a version bug
3. Clear browser data (More tools > Clear browsing data) — remove cache, cookies, and history
4. Disable extensions one at a time, starting with ad blockers
5. Reset network settings via Command Prompt or Terminal to flush DNS
6. Reset Chrome to default settings (Settings > Advanced > Reset settings)
7. For developers: open DevTools > Network tab and check “Disable Cache” while testing
Try these in order — reloading the page alone resolves the majority of cases.
Conclusion
Last updated: October 2026.
ERR_CACHE_MISS looks alarming but is usually just Chrome refusing to resubmit cached form data — a simple page reload fixes most cases, and the rest usually clear up after clearing cache or disabling a conflicting extension.
Frequently Asked Questions
Why does ERR_CACHE_MISS happen after submitting a form?
Chrome caches form submissions and asks for confirmation before resending them when you navigate back — if that confirmation flow breaks, you get ERR_CACHE_MISS instead of the usual resubmission prompt.
Is ERR_CACHE_MISS a problem with my computer or the website?
It can be either — most often it’s a browser-side caching conflict, but it can also stem from coding issues on the website itself, especially with PHP-based sites.
Will clearing my cache delete my saved passwords?
No — clearing cache and browsing data in Chrome does not remove saved passwords unless you specifically select that option in the clear-data dialog.
