[wp-trac] [WordPress Trac] #64656: Fatal error on new font library admin page

WordPress Trac noreply at wordpress.org
Wed Feb 18 16:03:17 UTC 2026


#64656: Fatal error on new font library admin page
----------------------------+--------------------------
 Reporter:  desrosj         |       Owner:  youknowriad
     Type:  defect (bug)    |      Status:  reopened
 Priority:  normal          |   Milestone:  7.0
Component:  Administration  |     Version:
 Severity:  normal          |  Resolution:
 Keywords:  needs-patch     |     Focuses:
----------------------------+--------------------------
Changes (by desrosj):

 * keywords:  has-patch => needs-patch
 * status:  closed => reopened
 * resolution:  fixed =>


Comment:

 Thanks for [61673] @youknowriad!

 I've gone and rebuilt the nightly with the latest in `trunk` and updated
 my site. The page loads now, but it's just a blank, black screen.

 Here is my full console output.
 {{{
 JQMIGRATE: Migrate is installed, version 3.4.1 load-scripts.php:5:981
 Layout was forced before the page was fully loaded. If stylesheets are not
 yet loaded this may cause a flash of unstyled content. node.js:418:1
 InstallTrigger is deprecated and will be removed in the future.
 utils.min.js:1:41665
 Import maps are not allowed after a module load or preload has started.
 font-library.php
 GET
 https://jonathandesrosiers.com/wp-includes/buildpages/font-
 library/loader.js?ver=7.0-alpha-61675
 NS_ERROR_CORRUPTED_CONTENT

 GET
 https://jonathandesrosiers.com/wp-includes/buildroutes/font-
 list/route.min.js?ver=5bf837c01b0b1bb1bc6f
 NS_ERROR_CORRUPTED_CONTENT

 GET
 https://jonathandesrosiers.com/wp-includes/buildroutes/fonts-
 home/route.min.js?ver=63fba8ad1ac5f2b9aba8
 NS_ERROR_CORRUPTED_CONTENT

 Loading failed for the module with source “https://jonathandesrosiers.com
 /wp-includes/buildpages/font-library/loader.js?ver=7.0-alpha-61675”. font-
 library.php:730:163
 Loading module from “https://jonathandesrosiers.com/wp-includes/buildpages
 /font-library/loader.js?ver=7.0-alpha-61675” was blocked because of a
 disallowed MIME type (“text/html”). font-library.php
 Loading module from “https://jonathandesrosiers.com/wp-
 includes/buildroutes/font-list/route.min.js?ver=5bf837c01b0b1bb1bc6f” was
 blocked because of a disallowed MIME type (“text/html”). font-library.php
 Loading module from “https://jonathandesrosiers.com/wp-
 includes/buildroutes/fonts-home/route.min.js?ver=63fba8ad1ac5f2b9aba8” was
 blocked because of a disallowed MIME type (“text/html”). font-library.php
 Uncaught (in promise) TypeError: The specifier “@wordpress/boot” was a
 bare specifier, but was not remapped to anything. Relative module
 specifiers must start with “./”, “../” or “/”. font-library.php
 downloadable font: Glyph bbox was incorrect (glyph ids 4) (font-family:
 "jetpack-protect" style:normal weight:400 stretch:100 src index:1) source:
 https://jonathandesrosiers.com/wp-content/plugins/jetpack-
 protect//assets/fonts/jetpack-protect.ttf?31wpn
 Partitioned cookie or storage access was provided to
 “https://widgets.wp.com/3rd-party-cookie-check/index.html” because it is
 loaded in the third-party context and dynamic state partitioning is
 enabled. autofill.js:1607:7
 GET
 https://jonathandesrosiers.com/favicon.ico
 [HTTP/2 404  124ms]

 Partitioned cookie or storage access was provided to
 “https://wordpress.com/widgets/3rd-party-cookie-check/” because it is
 loaded in the third-party context and dynamic state partitioning is
 enabled. autofill.js:1607:7
 Cookie warnings 2
 Partitioned cookie or storage access was provided to “https://public-
 api.wordpress.com/wp-admin/rest-proxy/?v=2.0#https://widgets.wp.com”
 because it is loaded in the third-party context and dynamic state
 partitioning is enabled. autofill.js:1607:7
 Cookie warnings 2
 Partitioned cookie or storage access was provided to “https://public-
 api.wordpress.com/wp-admin/rest-proxy/?v=2.0#https://wordpress.com”
 because it is loaded in the third-party context and dynamic state
 partitioning is enabled. autofill.js:1607:7
 3PC blocked admin-bar-v2.js:1:9392
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/64656#comment:6>
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