ThreadAbortException on spawned Thread won't crash process

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Import Namespace="System.Threading" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Button ID="btnNormalExceptionOnThread" runat="server" Text="Normal Exception on Thread (crashes w3wp.exe)" OnClick="btnNormalExceptionOnThread_Click" />
        <asp:Button ID="btnThreadAbortExceptionOnThread" runat="server" Text="Thread Abort Exception On Thread (graceful)" OnClick="btnThreadAbortExceptionOnThread_Click" />
        <div>As <a href="https://msdn.microsoft.com/en-us/library/ms228965%28v=vs.110%29.aspx?f=255&MSPPError=-2147217396">documented</a> by MSDN.</div>
    </div>
    </form>
</body>
</html>
<script runat="server">
    private void btnNormalExceptionOnThread_Click(object sender, EventArgs e)
    {
        var t = new Thread(new ThreadStart(GoAndThrow));
        t.Start();
    }
    private void btnThreadAbortExceptionOnThread_Click(object sender, EventArgs e)
    {
        var t = new Thread(new ThreadStart(Go));
        t.Start();
        Thread.Sleep(1000);
        t.Abort();
    }
    private void GoAndThrow()
    {
        Thread.Sleep(1000);
        throw new Exception("foo");
    }
    private void Go()
    {
        Thread.Sleep(3000);
    }
</script>