JS Console Error in inspect view: TypeError: Cannot read properties of undefined (reading 'replace')

[JasonGross]

I don't see any obvious failures from this, but when I click "sample" when viewing 2025-03-15T18-10-55+00-00_coq-to-lean_cVPifQF25ocKgzim9vbCb5.eval.tar.gz, I see in console

index.js:65751 TypeError: Cannot read properties of undefined (reading 'replace')
at htmlEscape (index.js:65988:21)
at HtmlFormatter.formatValue (index.js:65879:29)
at HtmlFormatter.format_added (index.js:65934:14)
at HtmlFormatter.recurse (index.js:65747:26)
at index.js:65762:16
at HtmlFormatter.forEachDeltaKey (index.js:65808:11)
at HtmlFormatter.formatDeltaChildren (index.js:65761:14)
at HtmlFormatter.format_node (index.js:65929:14)
at HtmlFormatter.recurse (index.js:65747:26)
at index.js:65762:16

[dragonstyle]

Thanks for reporting this. I've noticed this as well and it appears it is caused by this issue:

benjamine/jsondiffpatch#367

Specifically in the example eval we are generating a diff of an array that ends with an undefined value (and the value is subsequently removed). So far I have noticed no other side effects aside from the console logging, but will leave open to track.