‘Confirm Form Resubmission’ (err_cache_miss) Error in Chrome I 100% Fix

Most of the time people wonder that what this Confirm Form Resubmission (err_cache_miss) Error is? Some take it as an error, and people, in general, describe it as an error. But according to the Superuser posters, it is described as a feature of Google Chrome.

This pop up arises while you either go back to the previous page onto your browser or refresh the system. This pop up has been reported by many users from time to time, but this bug keeps on appearing in all the versions of google chrome and many other devices.

The reason being, the weakly built module of google chrome that deals with the forward and backward movements. Due to this, it has become almost impossible to solve this problem.

Confirm Form Resubmission (err_cache_miss) Error in Chrome

There are specific reasons due to which this err_cache_miss message appears on your screen. Below you can read some of the reasons.

  • When the internet connection is not proper.
  • A page that contains any form has been refreshed.
  • When you click the back button while being in the middle of form submission.

While filling any form where it is asking for your details then while the form is in middle of the submission you should not refresh or go back from the page.

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As while form submission user’s data is transferred to the server and if this process is interrupted in between, then there are chances that the contents of the page might be duplicated. As a result, you get the confirm form re-submission dialog box.

In this way, this dialog box turns out to be effective. For instance, if it would not have been there, then there might be a possibility that two forms would be submitted with the same details. Even then, at some points, this bug turns out to be very annoying, especially when you have pressed the refresh button by mistake.

There are specific ways by and by using any of them you can resolve this issue of Confirm form Resubmission dialog box pop up.

How to Fix Confirm Form Resubmission Error

As these resubmission form errors are quite annoying and time-consuming. Therefore, we have researched and found out specific ways through which you can get rid of this problem of Confirm Form Resubmission Dialog Pop Up.

Method #1 Replacing the POST Method

POST and GET are the two methods that are used to post the data entered by the user in the form to the browser. When the post method is used, then the data entered by the user is not appended to the URL. On the contrary, whenever the GET method is used, then the data is added onto the URL, defying the confidentiality.

So the point is, the GET method is generally not the first choice. But in the case of form submission dialog you need check that if in your page you are allowed to modify data then, POST method should be changed to GET method. You can achieve that by following the following step.

In your URL, you need to remove the word ‘POST’ and replace it with the word ‘GET.’

Method #2 Using Google Chrome Properties

There is another way to remove this snag by using Google Chrome Properties. You can get the result by following the below-given steps.

Step 1: Right-click on the shortcut icon of Google Chrome and select Properties.

Step 2: In Properties, find a field named target.

Step 3: Now, you just have to add the below-written text at the end of the previously written text in Target.

“–disable-prompt-on-repost”(without quotes)

Step 4: Close your Google Chrome. Re-open it with the same shortcut to see if the dialog box still appears on refreshing.

If you are using this method, then make sure that you have two shortcuts of Google Chrome. One with the changes that you made and the other one with the default properties. By this, you will be able to use the browser depending on your requirements.

Method #3 Disable Motion across the Browser

According to some resources, this Form resubmission Dialog popup arises again and again because the browser is unable to cache the POST request and tries to re-submits the form on refreshing. One of the main reasons behind this snag is continuous accidental forward and backward movements.

To resolve this issue, you can disable the motion buttons to prevent the browser from moving backwards and forward.

By this, if you accidentally press those buttons, even when the dialog box won’t pop up. If you have a touch screen device, then you can implement this by disabling the sliding option for forward and backwards.

Method #4 Clear Google Chrome Browsing Data to Fix Err_Cache_Miss Error

Clearing Browsing history can also help to resolve the issue. As the issue of duplicity can arise only when you the browser remembers the previously stored data.

After deletion of the previous data, you can fill the form again without the chances of its repetition. You can achieve this by following the below-given steps.

Step 1: On your browser, click on the three vertical dots on the top right corner.

Step 2: Select More Tools, and in it click on Clear Browsing Data.

Step 3: Navigate to Advanced Tabs and select the data that you want to clear.

Step 4: Now, click on Clear Data.

Method #5 Reset Chrome Browser Settings

Resetting your browser setting can also be an excellent way to resolve the problem. Follow the steps given below to implement the solution.

Step 1: On your browser, click on the three vertical dots on the top right corner.

Step 2: Select the settings options.

Step 3: Go to the end and select Show Advanced Settings.

Step 4: Find and click on the option Restore settings to their original defaults.

Step 5: Click on the Reset Settings.

Method #6 Disable Corrupted Extensions

Confirm Form Resubmission error can also emerge due to the corrupt extension of your browser. So, to solve the problem, you need to disable this extension. You should follow simple steps.

Step 1: On your browser, click on the three vertical dots on the top right corner.

Step 2: Select More Tools, and in it click on Extensions.

Step 3: Now search Corrupt Extension.

Step 4: When found, first disable it and then re-enable it.

Method #7 Use the PRG Pattern to Fix Confirm Form Resubmission

Instead of using the only POST method, you can use PRG; it stands for POST/REDIRECT/GET. Mostly while making a form page we use POST only which increases the chances of the form resubmission error. PRG here eliminates those chances.

Whenever you create a form page, create one more page. It should have the sequence, form page, the other page and again the form page. So when you enter the details, it will go to the other page, process it there and then go to the server instead of directly sending the data to the server.

The user will only be seeing the form page because the action field of the form is this page and not the second page. Therefore, the last action that the browser will remember will be GET and not POST and thus, prevent the form submission dialog box from appearing on refreshing.

Method #8 Using AJAX Submit Button

If you add the AJAX function of jQuery, the form will not reload after its submission. For that, you need to add the below-given function in your page’s code.

type: “POST,”
URL: “bin/validation.php.”
data: dataString,
success: function(){
//Whatever you want to do on successful submission
return false;

Here the Ajax () processes the data entered in the form as per to what the PHP file provided as the URL property. If the data is validated, it is considered as a successful form submission and thus, returns a false. So, even if the page is reloaded, it would not send any new request. Therefore, it will prevent the dialog box from popping up.

Method #9 Adding a Tag Inside <head> Part

One more way to remove this snag is if you can get access to the source code of the web page. Then, add the following tag to the head section of the page.

<meta http-equiv=”refresh” content=”60; write_the_url_of_the_page_to_be_tested_over_here.html” />

You need to add this very carefully onto the web page. This method can be implemented only when the website itself initiates the request, and the user pressed the refresh command.

Method #10 Delete No-Store to Fix Confirm Form Resubmission

You can also solve the issue if your form has the below-given text in your header field.

header(‘Cache-Control: no-store, no-cache, must-revalidate, max-age=0’);

If this is there in your header then, there is a possibility that the issue is with your header. You can follow the below-given steps to remove it.

Step 1: Try to delete ‘no-store’ from the header.

Step 2: Refresh the page within the form.

Step 3: Now re-enter the form and refresh the page to check if it has worked or not.



These are the few ways through which you can resolve the issue of the Confirm Form Resubmission (err_cache_miss) Error. By using any of these, you can get rid of the issue. These are not a permanent solution. So, you may have to implement them again after the period of time.