[fix] save last route on error so user logs in to the correct page, fixes frappe/erpnext#8174

frappe/www/message.html

@@ -3,7 +3,19 @@
 {% block title %}{{ title or _("Message") }}{% endblock %}
 
 {% block page_content %}
-
+<style>
+.hero-and-content {
+	background-color: #f5f7fa;
+}
+{% if fullpage %}
+header, footer {
+	display: none;
+}
+html, body {
+	background-color: #f5f7fa;
+}
+{% endif %}
+</style>
 <div class='page-card'>
 	<div class='page-card-head'>
 		<span class='indicator {{ indicator_color or "blue" }}'>
@@ -18,17 +30,11 @@
 {% if error_code %}
 <p class='text-muted text-center small' style='margin-top: -20px;'>{{ _("Status: {0}").format(error_code) }}</p>
 {% endif %}
-<style>
-.hero-and-content {
-	background-color: #f5f7fa;
-}
-{% if fullpage %}
-header, footer {
-	display: none;
-}
-html, body {
-	background-color: #f5f7fa;
-}
-{% endif %}
-</style>
+<script>
+	frappe.ready(function() {
+		if(window.location.hash) {
+			localStorage.setItem('session_last_route', window.location.hash.substr(1));
+		}
+	});
+</script>
 {% endblock %}