How do you remove a hashtag

I am using session.Hashtag to get a true/false value from a javascript function. I am new to hashtags and see that the hashtag is added to the URL in the browsers address, ie

I am not sure how this affects things otherwise in my web app, but am wondering if the hashtag can be removed. I tried session.HashTag = “”, but that leaves the pound sign. Any way to clear the hashtag all together?

I figure it out…