Summary
When I log into the MODX manager using Google Chrome and the default dashboard appears, the entire tab gets extremely laggy. This isn’t the case for other browsers like Safari.
Step to reproduce
See above
Observed behavior
If I try to move the tab around in Chrome, the movement is extremely jerky. If I collapse or expand the MODX resources menu, the animation clocks in at maybe 4 frames per second. The highlight that appears when hovering over items in the resources menu is about a half-second behind the cursor position. Opening any of the “Content”, “Media”, “Extras”, etc. menus shows similar behavior.
Expected behavior
If I click on a resource, or go to any page in the Manager except the Dashboard, everything is fine. Buttery smooth and lightning fast. Interestingly enough, if I remove all the Widgets from the dashboard it’s fine as well. The widgets are just the defaults — News Feed, Security Feed, Recently Edited Resources, and Who’s Online.
Environment
- Chrome 75.0.3770.27 (Official Build) beta (64-bit)
- MODX Revolution 2.7.1-pl
Other Notes
I tried all of the following to no avail: disabling all Chrome extensions; deleting everything in the browser cache; deleting everything in MODX’s cache. Capturing a Performance log in Chrome’s DevTools seems to indicate there’s an unusually high amount of resources being thrown at JS Heap and Nodes, but I’m not a JavaScript expert so I’m not sure what I’m looking at.