Page/Post revisions don't seem to load into preview

[ckhatton]

Two different websites had this problem, but it now seems only the one I look after has it. Video attached. It seems that whenever you use the slider on the revisions page of a page/post, it fails to load. Instead it spits out an error in relation to "admin-ajax.php" file.

This is with initial install, default theme, no plugins.

Chrome / Firefox / Safari.

[ckhatton]

Demonstration of a revisions page bug

[mukesh27]

Welcome @ckhatton,

It's working fine in my latest setup so can you please try to install fresh WordPress and check it issue was there

[r1k0]

Reproduction Report

Description

This report validates whether the issue can be reproduced.

Environment

• WordPress: 6.9
• PHP: 8.3.29
• Server: PHP.wasm
• Database: WP_SQLite_Driver (Server: 8.0.38 / Client: 3.51.0)
• Browser: Chrome 143.0.0.0
• OS: Linux
• Theme: Twenty Twenty-Five 1.4
• MU Plugins: None activated
• Plugins:
  • Test Reports 1.2.1

Actual Results

1. ❌ Error condition doesn't occur (not reproducible).
2. The revision slider moves as intended, with the revisions actively getting updated.
3. No errors are observed in Console as the slider is moved.

Additional Notes

• None

Supplemental Artifacts

Screencast:
​https://files.catbox.moe/rzimyw.webm