Facebook share link without JavaScript

You could use

<a href="https://www.facebook.com/sharer/sharer.php?u=#url" target="_blank">
    Share
</a>

Currently there is no sharing option without passing current url as a parameter. You can use an indirect way to achieve this.

1. Create a server side page for example: “/sharer.aspx”
2. Link this page whenever you want the share functionality.
3. In the “sharer.aspx” get the refering url, and redirect user to “https://www.facebook.com/sharer/sharer.php?u={referer}”

Example ASP .Net code:

public partial class Sharer : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        var referer = Request.UrlReferrer.ToString();

        if(string.IsNullOrEmpty(referer))
        {
            // some error logic
            return;
        }

        Response.Clear();
        Response.Redirect("https://www.facebook.com/sharer/sharer.php?u=" + HttpUtility.UrlEncode(referer));
        Response.End();
    }
}