Uncaught TypeError: f.hoverintent is not a function error

[FrankSwift]

Since installing 5.3.1 (and updating to 5.3.2) I've observed the following error:

Uncaught TypeError: f.hoverintent is not a function at HTMLDocument.<anonymous> (admin-bar.min.js?ver=3.8:1)

This error prevents the admin bar on the front end of the WordPress site from being able to dropdown a menu when hovering over an admin related link. Prior to WordPress 5.3.1 no such error was generated and dropdown worked as expected.

[SergeyBiryukov]

Related: #47069, #48993.

[Tkama]

I have the same problem!

[bonnerl]

I'm also seeing this error on WP 5.3.2.

[sabernhardt]

There have been cases where this error was related to caching:
​https://wordpress.org/search/hoverintent+is+not+a+function?in=support_forums

If you're using a cache plugin, you could try excluding the script from from JS optimization:

• wp-includes/js/hoverintent-js.min.js ​exclude single file
• wp-content/uploads/cached-scripts/ ​exclude directory

If you still receive the error after clearing cache and/or editing the cache rules (with WordPress 5.7), please let us know.

[sabernhardt]

Without confirmation that this is still a problem, I'll close the ticket.

If you experience this error again, please reopen and share more details and/or screenshots.