"Updating failed" error and cannot change permalink and preview is not working (solved by an update from Cloudflare)

[topkhoj]

TypeError: Cannot read property 'show_ui' of undefined
at https://topkhoj.com/wp-content/plugins/gutenberg/build/editor/index.js?ver=1533269593:12:302843
at i (https://topkhoj.com/wp-content/plugins/gutenberg/vendor/lodash.min.59550321.js:6:91)
at An.filter (https://topkhoj.com/wp-content/plugins/gutenberg/vendor/lodash.min.59550321.js:99:338)
at https://topkhoj.com/wp-content/plugins/gutenberg/build/editor/index.js?ver=1533269593:12:302808
at yh (https://topkhoj.com/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:96:396)
at lg (https://topkhoj.com/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:120:88)
at mg (https://topkhoj.com/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:120:386)
at gc (https://topkhoj.com/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:127:202)
at vb (https://topkhoj.com/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:126:230)
at ub (https://topkhoj.com/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:126:65)

[caxco93]

Could you please share with us where and when did you get this error?

[topkhoj]

Today, I got an update for WordPress 4.9.8 after updating the WordPress it suggested me to install Gutenberg editor plugin. And when I tried the editor I got this error.
Currently, I'm also not getting Yoast Seo suggestion tool below the Gutenberg editor or in the sidebar of the editor. Can you suggest me how to add focus keyword, meta description, edit permalink, and slug?

[pento]

Thank you for the details, @topkhoj!

The Yoast team are currently working on their full Gutenberg support, so there may be some features that aren't quite available yet. I'd suggest contacting Yoast support for more info.

For editing the permalink/slug, if you click on the post title, you'll see the current permalink and an edit button you can use.

[gziolo]

We should also improve the handling of custom taxonomies to ensure they don't impact Gutenberg itself. This is where we can do much better:

gutenberg/packages/editor/src/components/post-taxonomies/index.js

Line 21 in 94f5489

const visibleTaxonomies = filter( availableTaxonomies, ( taxonomy ) => taxonomy.visibility.show_ui );

[topkhoj]

Thanks for your suggestions @pento, but I'm not getting the option for editing the permalink/slug. Another error is the post preview is also not working.
Here is screecshots - https://docs.google.com/document/d/1jkh_VTqyiZYHyU2xsAgqnNCI7Kdb0DjpkvC5zXSiaLI/edit?usp=sharing

[pento]

To be able to edit the permalink, you'll need to select a permalink structure other than "Default", there should be a link to the permalink settings page when you click on the title.

For post preview, the "Updating Failed" message you're seeing suggests that Gutenberg wasn't able to talk to the REST API properly. Do you have any security plugins that might be disabling the REST API? Also, if you use CloudFlare, there's a problem with the CloudFlare WAF that they're working on a fix for. There's a workaround here that you can use.

[youknowriad]

Thanks for the report, I'm going to close this one as a duplicate of #8441 and #8456, Let's try to consolidate all CloudFlare issues in the same one.