#gsc.tab=0 added to urls Google Custom Search

Are you sure that tag (#gsc.tab=0) appears after you added Google custom search script? I started Google custom search few months ago, I never face such as issue. But today I can see #gsc.tab=0 tag on my every page including home page.

I visited another WP blogs that use Google custom search, but I can’t see that tag.

It goes away if I remove the Google Custom Search javascript from the sidebar so it must that.

Yes remove the Google Custom Search and it goes away: https://www.smartgridcostarica.com/

Seems it is related to the overlay search option. Two Page Layout does not show the #gsc.tab=0

i got same problem at my blog Lintas Berita so the solution is remove google custom search, ok i will try and i take back again with report if it work.

oh i was remove google costum search script in my widget. And it work. The error #gsc.tab=0 is gone.

Thanks All

Now it fixed.