Chrome ERR_CACHE_MISS — What It Means & How to Fix It

Fix Chrome ERR_CACHE_MISS error when resubmitting form data after navigating back, caused by expired cache entries. This guide covers everything you need to know about this topic, including common causes, step-by-step solutions, and answers to frequently asked questions.

Here are the key things to understand: ERR_CACHE_MISS appears when Chrome cannot find a cached copy of a page that requires form resubmission. This commonly occurs when pressing the browser's back button after submitting a form (POST request). Chrome shows 'Confirm Form Resubmission' dialog, and ERR_CACHE_MISS appears if the cache entry is gone. The error is a protection against accidentally double-submitting forms (duplicate orders, payments). Understanding these fundamentals will help you diagnose and resolve this issue more effectively.

The most common reasons this occurs include: Pressing the back button after a POST form submission to a page that has expired from cache. Browser cache was cleared while the page was in the back/forward history. Server sent Cache-Control: no-store headers preventing the response from being cached. Chrome's cache size limit caused eviction of the page's cached response. Identifying the root cause is the first step toward finding the right solution.

To resolve this, follow these recommended steps: Simply reload the page (F5 or Ctrl+R) — this makes a fresh request instead of using cache. If developing a website, implement the Post/Redirect/Get (PRG) pattern to avoid this issue. Clear Chrome's cache: Settings > Privacy > Clear browsing data > Cached images and files. Try accessing the page directly via its URL rather than using the back button. If these steps do not resolve the issue, consider consulting additional resources or a qualified professional.

This article is part of our Browser Errors collection on Error Codes Wiki. We provide comprehensive, up-to-date information to help you find solutions quickly.