Make frappe.session_user available for web_forms

frappe/templates/generators/web_form.html

@@ -142,7 +142,7 @@
 
 <div class="form-message text-muted hide"></div>
 <form role="form"
-	data-web-form="{{ name }}">
+	data-web-form="{{ name }}" data-owner="{{ doc.owner }}">
 	{% if params.name and web_page_link_text %}
 	<div class="row">
 		<div class="col-sm-9">

frappe/website/js/website.js

@@ -403,6 +403,9 @@ $(document).on("page-change", function() {
 	$(document).trigger("apply_permissions");
 	$('.dropdown-toggle').dropdown();
 
+	$.extend(frappe, getCookies());
+	frappe.session = {'user': frappe.user_id};
+
 	frappe.datetime.refresh_when();
 	frappe.trigger_ready();
 	frappe.bind_filters();