Confirmation popup displays when closing browser tab when page hasn't changed

[maddisondesigns]

Issue Overview

If I open an existing page, and then decide to close it straight away (because maybe I opened the wrong one), I'm prompted with a popup message, even when the page hasn't been touched or edited.

This happens on both Drafts and Published pages.

I raised a similar issue back in November (#3447). This was closed in favour of #3296, advising that it had been fixed in v1.7. Subsequently, #3296 has now also been closed. This issue has obviously resurfaced again.

Steps to Reproduce (for bugs)

1. Open existing page in a new browser tab
2. Close new browser tab
3. View popup that appears

Expected Behavior

If I haven't edited the page, I shouldn't be advised that I could be losing changes by closing the tab

Current Behavior

I'm advised that I could lose changes by continuing on, even those nothing has changed

Possible Solution

Don't mark the page as dirty when it hasn't changed

Related Issues and/or PRs

#3447
#3296

Firefox Quantum 57.0.4 (64-bit)
WordPress 4.9.2
Gutenberg 2.1.0

[pento]

@maddisondesigns: What blocks are being used on that page?

[maddisondesigns]

That particular page had paragraph blocks, image blocks and a Text Column block

[danielbachhuber]

@maddisondesigns It looks like you have some plugins active in your screenshots. Can you see if the issue reproduces without active plugins?

[maddisondesigns]

@danielbachhuber I did some more testing as per your suggestion.

When I deactivated all other plugins, I couldn't replicate the issue.

I then tried activating the plugins individually with Gutenberg....
Gutenberg+WooCommerce - Couldn't replicate
Gutenberg+Yoast SEO - Could replicate
Gutenberg+ACF Pro - Could replicate

So it seems like anything that added Custom Meta Boxes causes the issue to trigger. I hope that helps.

[petertwise]

I am also noticing this with WordPress 4.9.4, Gutenberg 2.3.0, ACF Pro 5.6.9
https://youtu.be/YqPGOfa5ZiA?t=43s

[petertwise]

Possibly related: #5520

Edit: nope. this seems to be a separate issue.

[petertwise]

FYI, this issue is not resolved in 2.4.0, despite some of the other "dirty forms" + meta box issues having been resolved.

[sokratesagogo]

Not resolved in 2.6.0 either. Updating page content in both simple and repeater fields, content is saved but we still get warning on clicking the view post link (link text has also changed from View Page to View Post when edits have been saved to a page)

[swissspidy]

Still an issue with Gutenberg 3.2 apparently 😞

[ovidiul]

This seems to be an issue in the 3.9 version as well.

[signaturesteve]

same issue here

[designsimply]

Stopping by to test and help keep an eye on this issue as I think it's important and would also like to note that steps to reproduce may be tricky pin down (especially if the problem happens intermittently or if it depends on very specific set of circumstances we haven't thought of yet here, such as changing data in meta boxes or block validation issues due to update from past plugin versions) and I'd like to keep this issue going even if I can't reproduce it straight away. Also would like to note that some recent improvements have been made around refactoring state (#10844) so it would be cool to check back in to see if others are still experiencing the issue after 4.3 (or 4.3.0-rc.1 if you help with pre-release testing!) becomes available.

I tested just now with the testing steps from the original report and I was unable to replicate the problem:

1. Open existing page in a new browser tab
2. Close new browser tab
3. View popup that appears

^{Tested with WordPress 4.9.8 and Gutenberg 4.2.0 using Firefox 63.0.1 on macOS 10.13.6.}

If you are still experiencing this issue and if you are willing to provide additional details, it would be helpful to note a list of active plugins on your site, whether the unwarranted save prompt occurs consistently or not, and the type of content in the posts where the prompt is shown. Also, if you see any warnings about block validation in your browser console at the time you open the post, please note them or grab a screenshot if possible.

Plus, would like to say thank you to @maddisondesigns for raising issues like this one!

[wrightcj03]

whether the unwarranted save prompt occurs consistently or not, and the type of content in the posts where the prompt is shown.

I'm able to replicate this issue consistently if I click into the Classic Editor block. Clicking into other blocks and leaving the the post or page doesn't trigger the prompt. I'm able to replicate in posts, pages, and a CPT. Here are the steps:

1. Open existing post with Classic Editor block
2. Click into Classic Editor block
3. Prompt appears warning that "changes may not be saved"

Tested with WordPress 4.9.8 and Gutenberg 4.2.0 using Chrome 70.0.3538.77 on macOS 10.14.1

Active plugins on the tested site:

• Akismet Anti-Spam
• Duplicate Post
• Featured Images in RSS w/ Size and Position
• Gravity Forms
• Gravity Forms + Custom Post Types
• Gravity Forms Authorize.Net Add-On
• Gravity Forms MailChimp Add-On
• Gravity Forms Stripe Add-On
• Jetpack by WordPress.com
• Pure Chat
• Recent Posts Widget With Thumbnails
• Regenerate Thumbnails
• Safe Redirect Manager
• Two Factor
• VaultPress
• Yoast SEO

I see this error in the console when I open a post I can replicate the issue with of these posts (I don't see this error on posts I cannot replicate the issue on):

plugin.js?v=20150715&wp-mce-4800-20180716:68 Uncaught TypeError: editor.getParam(...).join is not a function at initAtDCore (plugin.js?v=20150715&wp-mce-4800-20180716:68) at Hx.<anonymous> (plugin.js?v=20150715&wp-mce-4800-20180716:311) at jg.c.fire (VM2607 tinymce.min.js:2) at Hx.fire (VM2607 tinymce.min.js:2) at ax (VM2607 tinymce.min.js:2) at VM2607 tinymce.min.js:2 at VM2607 tinymce.min.js:2 at VM2607 tinymce.min.js:2

[maddisondesigns]

I just tested with 5.0-beta3-43878 and wasn't able to replicate this issue using my original steps outlined above

1. Open existing page in a new browser tab
2. Close new browser tab
3. View popup that appears

I tried with both ACF Pro and Yoast activated

[KustomKode]

I am able to reproduce this every time on pages that have a meta box. It happens if I open the page and try to navigate away, or if I make an edit and save, then try to navigate away. It happens every single time, 100% of the time. I am using Gutenberg version: 4.6.1.

[youknowriad]

I think this has been fixed in the last versions of ACF.

Closing, let's reopen if it comes up again.