We are using AA Product String Builder Search Discovery (v1.0.23)extension and we have followed all the configuration steps.
However ,we are getting an Error “Uncaught (in promise) Type Error: Cannot read property 'split' of undefined”.
Please refer below screen shot.
It would be really great, if you can guide us to resolve this error.
Ultimately, it is a bug in Search Discovery's extension. You may want to reach out to them. Chances are you are using an escape character in your product string and their extension isn't catching them.