Gutenberg: Updating post is giving a error "Updating failed" (solved by removing unnecessary rules in .htaccess for a RewriteCond for some Request Methods)

[hazephase]

Issue Overview

I have a post that I am working on for a few days, when I try to update it I get a error updating failed.

Steps to Reproduce (for bugs)

1. make a post
2. add a few blocks
3. save them
4. add more blocks and then try to update.
   

Expected Behavior

It should update the post

Current Behavior

I get a error message "Updating failed"

Possible Solution

Screenshots / Video

Related Issues and/or PRs

Todos

• [ ] Tests
• [ ] Documentation

[casaschi]

It happens here as well.

Tried both on wordpress.org 4.9.1 and on wordpress.org nightly releases.

Tried both gutenberg 1.8.1 and on gutenberg 1.9.0.

Tried on several different browsers: latest chrome, old Internet Explorer, Safari… it’s NOT a browser issue.

The chrome console reports an error in load-scripts.php?…
http://server.com/path/to/wordpress/wp-json/wp/v2/posts/37 403 (Forbidden)

[Soean]

@hazephase @casaschi Thanks for your reports.

Have you disabled the REST API?
What plugins are you using?
Are you running the site on a local machine, a Webhost or in a CDN?

[casaschi]

I'm using a fresh install, first a fresh install of 4.9.1 then adding the beta test plugin for nightly updates.

No other plugin loaded.

It's a fresh install where I wanted to test whether my own plugin (that provides a custom bbcode) still works well with gutenberg. But I can't get guternberg to work even before installing my plugin.

I did not intentionally disable the REST API, whatever a fresh install does, that's how my test system is setup.

[hazephase]

@Soean I am using a WebHost, GoDaddy. I have not disabled REST API but not sure if that is going to help as @casaschi have a more fresh install of WP. I have some plugins installed already.

[aduth]

Possibly related to #2565?

[casaschi]

Unlikely related to 2565 because I have no cloudflare in my setup, at least as far as I’m aware. Any suggestion how to rule that out completely?

[mobotter]

I have the same 'Update failed' problem on two different installations, but on the same server. So maybe it's a server setting...?

[aduth]

It would be useful to have the error message returned from the save attempt.

Similar instructions exist for other browsers, but if you use Chrome:

1. Navigate to Posts > New Post
2. Open DevTools from Menu > Tools > Developer Tools
3. Switch to the Network tab
4. Attempt to save the post
5. Under "Name" you should see a numbered request, with PUT method
   
   
   
   • Example:
   
   
6. Click this request
7. Change to the Response tab
8. Copy and paste the contents of the tab here

[casaschi]

I get the "Error 403: forbidden" page from my site (I mentioned the 403 error code in my original post if you read carefully)

[casaschi]

Updated to gutenberg 1.9.1 and no changes, still unable to update/publish posts.

[mobotter]

@aduth I get:

You don't have permission to access /wp-json/wp/v2/pages/211 on this server.

and:

PUT http://domain.de/wp-json/wp/v2/pages/211 403 (Forbidden)
send @ jquery.js?ver=1.12.4:4
ajax @ jquery.js?ver=1.12.4:4
e.ajax @ backbone.min.js?ver=1.2.3:1
e.sync @ backbone.min.js?ver=1.2.3:1
sync @ wp-api.js?ver=4.9.1:880
save @ backbone.min.js?ver=1.2.3:1
save @ wp-api.js?ver=4.9.1:892
REQUEST_POST_UPDATE @ index.js?ver=1513191009:11
(anonymous) @ index.js?ver=1513191009:32
(anonymous) @ index.js?ver=1513191009:32
(anonymous) @ index.js?ver=1513191009:11
v @ index.js?ver=1513191009:11
callCallback @ react-dom.f04e56af.js:1527
invokeGuardedCallbackDev @ react-dom.f04e56af.js:1566
invokeGuardedCallback @ react-dom.f04e56af.js:1423
invokeGuardedCallbackAndCatchFirstError @ react-dom.f04e56af.js:1437
executeDispatch @ react-dom.f04e56af.js:1660
executeDispatchesInOrder @ react-dom.f04e56af.js:1679
executeDispatchesAndRelease @ react-dom.f04e56af.js:2197
executeDispatchesAndReleaseTopLevel @ react-dom.f04e56af.js:2208
forEachAccumulated @ react-dom.f04e56af.js:2174
processEventQueue @ react-dom.f04e56af.js:2367
runEventQueueInBatch @ react-dom.f04e56af.js:2379
handleTopLevel @ react-dom.f04e56af.js:2389
handleTopLevelImpl @ react-dom.f04e56af.js:2028
batchedUpdates @ react-dom.f04e56af.js:14309
performFiberBatchedUpdates @ react-dom.f04e56af.js:1874
stackBatchedUpdates @ react-dom.f04e56af.js:1865
batchedUpdates @ react-dom.f04e56af.js:1879
batchedUpdatesWithControlledComponents @ react-dom.f04e56af.js:1892
dispatchEvent @ react-dom.f04e56af.js:2102

can you help us?

[aduth]

Is domain.de the actual domain for your site? Or a dummy URL you used? Or where you host?

Obvious issue being that the WordPress REST API is not accessible at all on that host:

https://domain.de/wp-json/

[mobotter]

domain.de is a dummy URL. My host is All-Inkl.com

but /wp-josin/ is accessible. opening the URL https://domain.de/wp-json/ brings me the whole json information, without an error.
also for example http://domain.de/wp-json/wp/v2/pages works.
and existing pages are working too: http://domain.de/wp-json/wp/v2/pages/18

but when i am saving or updating a page in gutenberg i get the error:
PUT http://domain.de/wp-json/wp/v2/pages/2 403 (Forbidden)

[Soean]

@mobotter I am using the same Hoster without this error.
Which user role are you using inside WordPress

[casaschi]

wordpress/wp-json/ is accessible for my site also, but still getting 403 (Forbidden) for
wordpress/wp-json/wp/v2/posts/37

[mobotter]

I am Administrator on these installations...

In Firefox I get the following errors:
_404 not found - The requested URL /wp-json/gutenberg/v1/reusable-blocks was not found on this_
and
_405 Method Not Allowed - The requested method PUT is not allowed for the URL /wp-json/wp/v2/pages/2._

Why PUT is not allowed? GET Requests work..

Maybe it's a problem with the REST API and mod_security and not with the gutenberg editor itself...

[mobotter]

I am sorry, my mistake.
It was my .htaccess with a RewriteCond for some Request Methods.
after removing them, saving posts works again.
sorry. :)

[aduth]

@casaschi Can you confirm whether you have any custom rules in an .htaccess (or equivalent nginx/other server software config) if this is available to you to check?

[casaschi]

I have a clean install of wordpress.org that I did explicitly for testing gutenberg.

The .htaccess file was created by the wordpress.org installation and looks like this

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /ZZZ/wordpress/
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /ZZZ/wordpress/index.php [L]
</IfModule>

# END WordPress

I tried removing all those entries but then the wordpress.org admin pages fail to work, I can't even get to the new post editor page.

[aduth]

Hmm is this a subdirectory install?

https://codex.wordpress.org/Giving_WordPress_Its_Own_Directory

[casaschi]

This is the URL:
http://pgn4web.casaschi.net/ZZZ/wordpress/

It's in a subdirectory but it's happy to show the path in the URL, no rewrite rules for that.
Again, everything installed fresh with all config and .htaccess done by the wordpress.org install.

[casaschi]

Updated to plugin version 2.0.0 but the "updating failed" error is still there :-(

[mobotter]

@casaschi
I had this Rule in my .htaccess file

_RewriteCond %{REQUEST_METHOD} ^(connect|debug|delete|move|put|trace|track) [NC]
RewriteRule .* - [F]_

maybe your hoster blocks the put method.

hope that helps

[bph]

So I just opened a post, i was working on for the last couple of days.

here are the error messages from the dev tools:
load-scripts.php:9 JQMIGRATE: Migrate is installed, version 1.4.1
13:43:34.899 chrome-extension://jnhgnonknehpejjnehehllkliplmbmhn/content_script.js:24 initializing Content Script message listener
513:44:10.703 Blocked form submission to '' because the form's frame is sandboxed and the 'allow-forms' permission is not set.
13:43:36.520 widgets.js:9 Blocked form submission to 'https://syndication.twitter.com/i/jot' because the form's frame is sandboxed and the 'allow-forms' permission is not set.
(anonymous) @ widgets.js:9
13:43:36.562 widgets.js:9 Blocked form submission to 'https://syndication.twitter.com/i/jot' because the form's frame is sandboxed and the 'allow-forms' permission is not set.
(anonymous) @ widgets.js:9
13:43:36.571 widgets.js:9 Blocked form submission to 'https://syndication.twitter.com/i/jot' because the form's frame is sandboxed and the 'allow-forms' permission is not set.
(anonymous) @ widgets.js:9
13:43:36.582 widgets.js:9 Blocked form submission to 'https://syndication.twitter.com/i/jot' because the form's frame is sandboxed and the 'allow-forms' permission is not set.
(anonymous) @ widgets.js:9
13:43:36.589 widgets.js:9 Blocked form submission to 'https://syndication.twitter.com/i/jot' because the form's frame is sandboxed and the 'allow-forms' permission is not set.
(anonymous) @ widgets.js:9
13:43:58.693 /wp-json/wp/v2/posts/2272 Failed to load resource: the server responded with a status of 502 ()
13:43:58.794 /wp-admin/post.php?post=2272&action=edit&classic-editor=1&meta_box=1 Failed to load resource: the server responded with a status of 502 ()
13:44:34.230 load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4 POST https://gutenbergtimes.com/wp-admin/admin-ajax.php 502 ()
send @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
ajax @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
j @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
(anonymous) @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
setTimeout (async)
k @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
m @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
g @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
13:44:34.239 load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4 XHR failed loading: POST "https://gutenbergtimes.com/wp-admin/admin-ajax.php".
send @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
ajax @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
j @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
(anonymous) @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
setTimeout (async)
k @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
m @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
g @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
13:45:35.649 load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4 XHR finished loading: POST "https://gutenbergtimes.com/wp-admin/admin-ajax.php".
send @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
ajax @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
j @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
(anonymous) @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
setTimeout (async)
k @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
(anonymous) @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
i @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:2
fireWith @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:2
y @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
c @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
XMLHttpRequest.send (async)
send @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
ajax @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
j @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
(anonymous) @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
setTimeout (async)
k @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
m @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
g @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
13:46:34.336 load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4 XHR finished loading: POST "https://gutenbergtimes.com/wp-admin/admin-ajax.php".
send @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
ajax @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
j @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
(anonymous) @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
setTimeout (async)
k @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
m @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
(anonymous) @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
dispatch @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:3
r.handle @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:3
13:47:15.258 [Violation] 'setTimeout' handler took 52ms
13:47:34.391 load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4 XHR finished loading: POST "https://gutenbergtimes.com/wp-admin/admin-ajax.php".
send @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
ajax @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
j @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
(anonymous) @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
setTimeout (async)
k @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
(anonymous) @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
i @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:2
fireWith @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:2
y @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
c @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
XMLHttpRequest.send (async)
send @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
ajax @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4
j @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
(anonymous) @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
setTimeout (async)
k @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
m @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
(anonymous) @ load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-button,jquery-ui-position,jquery-ui-dialog,svg-pa&load[]=inter,heartbeat,wp-auth-check,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,wp-a11y,wplink,jquery-ui-menu,jque&load[]=ry-ui-autocomplete,thickbox,media-upload&ver=4.9.4:300
dispatch @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:3
r.handle @ load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:3
13:49:36.478 load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,underscore,wp-util,quicktags&ver=4.9.4:4 XHR finished loading: POST "https://gutenbergtimes.com/wp-admin/admin-ajax.php".

Also, I have React tab on the dev tools and here are the props. maybe that helps:
children:
{…}
$$typeof:
Symbol(react.element)
_owner:
null
key:
null
props:
{…}
ref:
null
type:
a()
messages:
{…}
a11yNotice.opensInNewTab:
"(Opens in a new browser tab)"
content-analysis.considerations:
"Considerations"
content-analysis.disabledButton:
"Marks are disabled in current view"
content-analysis.errors:
"Errors"
content-analysis.good:
"Good results"
content-analysis.highlight:
"Highlight this result in the text"
content-analysis.improvements:
"Improvements"
content-analysis.language-notice:
"Your site language is set to {language}."
content-analysis.language-notice-contact-admin:
"Your site language is set to {language}. If this is not correct, contact your site administrator."
content-analysis.language-notice-link:
"Change language"
content-analysis.nohighlight:
"Remove highlight from the text"
content-analysis.problems:
"Problems"
locale:
"en_US"

I also have a screenshot.

[danielbachhuber]

Closing, as it doesn't appear there's timely and immediately actionable information in this issue. Feel free to open a new issue if the problem comes up again and we can diagnose further.

[saeedashifahmed]

Same, updating failed on my site https://droidfeats.com/

[KumarAbhirup]

Same with me. Please help :-(

[lintangtimur]

My problem solved with
Toggle Off from On ModSecurity in cPanel hosting provider

[reetishrestha]

You can change Gutenberg Editor to classic editor the error does not occur after changing the editor

[bikubi]

Hey, I just spent a couple of hours with something very similar. Here, the call to
/wp-json/wp/v2/pages/123?_locale=user would fail with a 503.
I tried calling it manually, and it would work without the query string...
Then I tried the usual suspects: disabling all plugins, re-saving permalinks etc., and what finally did the trick was freaking deleting .htaccess, re-saving permalinks (only to have it replaced with pretty much an identical file). Weird, weird, weird.

[pakpenyo]

My problem solved with
Toggle Off from On ModSecurity in cPanel hosting provider

Multisite here, classic editor, solved with this.

[indianmomszurich]

We get this error only when the text has the word 'having' or has a text with two single quotes eg This is an 'apple' and 'fruit'. With the latest Wordpress 5.3.2 .

[drveresh]

RewriteCond %{REQUEST_METHOD} ^(connect|debug|delete|move|put|trace|track) [NC]
RewriteRule .* - [F]

Awesome, it worked perfectly. Got relieved after searching everywhere for this one single line.

[pixelperfinch]

In my case the problem was caused by the underscore sign at the beginning of the meta key name. Once removed the error has gone.

[alijaffar]

My problem solved with
Toggle Off from On ModSecurity in cPanel hosting provider

Great tip here- I did this and no more WP JSON API issues and it's cool since my WAF is active