Search not working after upgrade to 2.67.5 version

[bbsparkrock]

After upgrading to version 2.67.5 from 2.59.3, when I try to perform a search, nothing happens. Please assist.

The browser console displays the following:
TypeError: Cannot read properties of undefined (reading 'split')
at highlightKeywords (docfx.js:471:26)
at enableSearch (docfx.js:275:7)
at HTMLDocument. (docfx.js:25:3)
at ee (jquery.js:3830:29)
at Ge (jquery.js:3898:12)
enableSearch @ docfx.js:281
(anonymous) @ docfx.js:25
ee @ jquery.js:3830
Ge @ jquery.js:3898
setTimeout (async)
(anonymous) @ jquery.js:3936
h @ jquery.js:3564
fireWith @ jquery.js:3694
fire @ jquery.js:3702
h @ jquery.js:3564
fireWith @ jquery.js:3694
ready @ jquery.js:4174
Xe @ jquery.js:4184

FYI. The website is hosted on an Azure website.

[KalleOlaviNiemitalo]

Which web browser are you using? There have been compatibility problems with Firefox ESR.

[bbsparkrock]

I have tested in Chrome and Edge.

[filzrev]

From log stack trace. It seems error is occurred at highlightKeywords method.(It's is called on page load).
https://github.com/dotnet/docfx/blob/main/templates/default/styles/docfx.js#L237

TypeError: Cannot read properties of undefined (reading 'split')
at highlightKeywords (docfx.js:471:26)
at enableSearch (docfx.js:275:7)
at HTMLDocument. (docfx.js:25:3)

But docfx.js:471 line number is not matched 2.67.5 nor 2.59.3 version's docfx.json.
It seems docfx.js that deployed to your Azure website is not original version.
Instead, some modified version is used?