.html file format of Katalon recorde is missing a " in the DOCTYPE tag. + datalist tag not defined

When having a look at the .html format of Katalon recorder I came across:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

I assume the intended line was: (Add a opening" at the beginning of the URL, there is already a closing ")

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

I also ran The W3C HTML validator on my html file. And it reported “element “datalist” undefined”. Is it an idea to have own DTD to reference to?

Way to reproduce:

Start Katalon Recorder. (my version is (I assume, I downloaded it some days ago) 3.5.7)

Create a new Test Suit.

Add one Test Case.

Save Test Suite as.

Open the resulting HTML file.