John Blackbourn (@johnbillion) – WordPress user profile

Member Since: December 7th, 2005
Location: Tonbridge, UK; and Torino, Italy
Website: johnblackbourn.com
GitHub: johnbillion
Employer: Human Made Ltd
Find me on:

Bio

I’m one of the team of WordPress core developers. I was the release lead for WordPress 4.1 and 4.9.1. I work as a Principal Web Engineer at Human Made.

Previously I’ve worked at Code For The People and WordPress.com VIP.

Contributions Sponsored

John Blackbourn contributes 4 hours per week to the following teams: CLI, Core, Documentation.

Contribution History

Accessibility Contributor
bbPress Contributor
BuddyPress Contributor
Core Contributor
Core Team
Documentation Contributor
Meetup Organizer
Meta Contributor
Plugin Developer
Translation Contributor
WordCamp Organizer
WordCamp Speaker

Activity
Plugins
Favorites
Translations

Posted a reply to Query Monitor in Beaver Builder, on the site WordPress.org Forums:
It's been a while since I've used Beaver Builder and I'm not sure how it…

2 days ago
Posted a reply to Idea around “Fatal error: Allowed memory size of ** exhausted”, on the site WordPress.org Forums:
Thanks for the message. I've started to tackle this here with a feature that allows…

2 days ago
Posted a reply to Can’t swith back to the admin page, on the site WordPress.org Forums:
You should try deactivating your other plugins one by one to see which one is…

2 days ago
Posted a reply to Block User, on the site WordPress.org Forums:
You need to add some output to the innermost condition (where the commented out lines…

3 days ago
Posted a reply to Block User, on the site WordPress.org Forums:
This should be possible but you'd need to introduce a means of centrally tracking which…

3 days ago
Posted a reply to 15 mins recurrence time, on the site WordPress.org Forums:
You'll need to first add a 15 minutes schedule on the Settings -> Cron Schedules…

4 days ago
Posted a reply to Logout Bug, on the site WordPress.org Forums:
What does the error above it say? Does it happen without QM activated?

5 days ago
Pushed 1 commit to WordPress/WordPress:
Application Passwords: Various docblock improvements.

6 days ago
Committed [51958] to Core SVN:
Application Passwords: Various docblock improvements. See #53399, #42790

6 days ago
Pushed 1 commit to WordPress/WordPress:
Docs: Miscellaneous docblock improvements.

6 days ago
Committed [51957] to Core SVN:
Docs: Miscellaneous docblock improvements. See #53399

6 days ago
Pushed 1 commit to WordPress/WordPress:
Docs: Miscellaneous docblock improvements.

1 week ago
Committed [51955] to Core SVN:
Docs: Miscellaneous docblock improvements. See #53399

1 week ago
Pushed 1 commit to WordPress/WordPress:
Date/Time: Improve the docblocks for various date and time related...

1 week ago
Committed [51950] to Core SVN:
Date/Time: Improve the docblocks for various date and time related ...

1 week ago
Submitted pull request #1789 to WordPress/wordpress-develop:
#54341 Add internationalisation to the site health info section headings

1 week ago
Created ticket #54341 on Core Trac:
Missing i18n on the Site Health Info screen

1 week ago
Pushed 1 commit to WordPress/WordPress:
Site Health: Correct and improve the documentation for the `debug_information`...

1 week ago
Committed [51949] to Core SVN:
Site Health: Correct and improve the documentation for the ...

1 week ago
Created ticket #54340 on Core Trac:
WP_LOCAL_DEV shouldn't be included in Site Health Info

1 week ago
Posted a reply to Redirect to a specific Url, on the site WordPress.org Forums:
Yes this can be achieved with the login_redirect filter, but be aware that this is…

1 week ago
Reopened ticket #16841 on Core Trac:
Manually created user roles not showing in author dropdown regardless ...

1 week ago
Posted a reply to wp-crontrol + cloudflare, on the site WordPress.org Forums:
How long ago did you configure the DNS? It might be that the change hasn't…

1 week ago
Posted a reply to Issue during cron execution – not acceptable, on the site WordPress.org Forums:
This has been fixed in version 1.11.0. A word of advice: don't use language like…

1 week ago
Posted a reply to CRON Events 51 years ago, on the site WordPress.org Forums:
If you try to delete one of these events and you get an error message…

1 week ago
Committed [2620394] to Plugins SVN:
Update to version 1.11.0 from GitHub

1 week ago
Posted a reply to Peak Memory Usage >200% of WordPress limit, on the site WordPress.org Forums:
This most likely means that something on your site is increasing or removing the limit…

1 week ago
Posted a reply to Extremely slow web page response with Query Monitor enabled, on the site WordPress.org Forums:
Another user saw a similar issue recently and it turned out to be caused by…

2 weeks ago
Posted a reply to No log for function used between pages, on the site WordPress.org Forums:
This is one of the most requested features of QM. I'm working on it, but…

2 weeks ago
Submitted pull request #85 to WordPress/hosting-handbook:
Clarify PHP extension requirements

2 weeks ago
Created issue #84 in the WordPress/hosting-handbook repository:
Clarify required and optional extensions

2 weeks ago
Pushed 1 commit to WordPress/WordPress:
REST API: Correct the order of the parameters documented for...

3 weeks ago
Committed [51915] to Core SVN:
REST API: Correct the order of the parameters documented for ...

3 weeks ago
Posted a reply to Not working on the frontend, on the site WordPress.org Forums:
Can you try switching your theme to one of the default themes such as Twenty…

3 weeks ago
Closed pull request #1750 on WordPress/wordpress-develop:
wp_check_filetype allows filename to not end in extension

3 weeks ago
Posted a reply to Missing dependencies, on the site WordPress.org Forums:
Sorry but I'm not able to help with website issues that Query Monitor identifies as…

4 weeks ago
Posted a reply to Missing Dependencies, on the site WordPress.org Forums:
That's weird. Can you report it to the author of the Shortpixel plugin and see…

4 weeks ago
Posted a reply to Any plugin to disable API calls?, on the site WordPress.org Forums:
I don't know of a plugin that lets you selectively disable individual calls but the…

4 weeks ago
Posted a reply to Conflict with Woocommerce, on the site WordPress.org Forums:
Is there a JavaScript error in your browser console?

1 month ago
Posted a reply to monitor or block access to WP settings=>general, on the site WordPress.org Forums:
That's not something that you can do with this plugin unfortunately, unless the query happens…

1 month ago
Committed [51886] to Core SVN:
Docs: Improve various inline documentation for admin bar functions and ...

1 month ago
Posted a reply to Fatal error: Call to undefined function login_header(), on the site WordPress.org Forums:
The fatal has been fixed in version 1.5.8. I think the workflow you're using will…

1 month ago
Committed [2608299] to Plugins SVN:
Update to version 1.5.8 from GitHub

1 month ago
Posted a reply to Fatal error: Call to undefined function login_header(), on the site WordPress.org Forums:
It looks like somehow this workflow caused the interim-login parameter to be passed to a…

1 month ago
Posted a reply to Not working after user alias changed, on the site WordPress.org Forums:
Thanks. I can't see any reason why the nickname/alias would affect switching users, and I…

1 month ago
Posted a reply to Cron Job not working on AWS, on the site WordPress.org Forums:
It will be better to post this in the main WordPress support forum as this…

1 month ago
Posted a reply to Not working after user alias changed, on the site WordPress.org Forums:
Can you clarify what you mean by a user alias? This isn't a standard field…

1 month ago
Posted a reply to Query Monitor Queries tab says: No database queries were logged., on the site WordPress.org Forums:
Thanks for letting me know

1 month ago
Posted a reply to ?doing_wp_cron URL parameter, on the site WordPress.org Forums:
If you remove ALTERNATE_WP_CRON and visit the Tools -> Cron Events screen does WP Crontrol…

1 month ago
Posted a reply to ?doing_wp_cron URL parameter, on the site WordPress.org Forums:
If I'm honest I'm not sure where this is documented. Are you using the ALTERNATE_WP_CRON…

1 month ago