Index: openacs-4/packages/notifications/lib/notification-sse.adp
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/notifications/lib/notification-sse.adp,v
diff -u -r1.1 -r1.2
--- openacs-4/packages/notifications/lib/notification-sse.adp	6 Feb 2025 15:55:53 -0000	1.1
+++ openacs-4/packages/notifications/lib/notification-sse.adp	10 Jun 2025 13:19:56 -0000	1.2
@@ -23,17 +23,11 @@
     }
 
     if (Notification.permission === 'granted') {
-        // Check whether notification permissions have already been granted;
-        // if so, create a notification
+        // Check whether notification permissions have already been
+        // granted; if so, create a notification. Note that we cannot
+        // request consent here if it was not granted earlier, because
+        // the request should follow a user interaction.
         const notification = messageToNotification(message);
-    } else if (Notification.permission !== 'denied') {
-        // We need to ask the user for permission
-        Notification.requestPermission().then((permission) => {
-            // If the user accepts, let's create a notification
-            if (permission === 'granted') {
-                const notification = messageToNotification(message);
-            }
-        });
     } else {
         console.warn('Your browser does not have permission to display this notification.');
         return
Index: openacs-4/packages/notifications/tcl/notification-sse-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/notifications/tcl/notification-sse-procs.tcl,v
diff -u -r1.2 -r1.3
--- openacs-4/packages/notifications/tcl/notification-sse-procs.tcl	20 Dec 2024 12:14:51 -0000	1.2
+++ openacs-4/packages/notifications/tcl/notification-sse-procs.tcl	10 Jun 2025 13:19:57 -0000	1.3
@@ -91,17 +91,18 @@
             return
         }
 
-        if { $content_html eq "" } {
-            set content $content_text
-        } else {
-            set content $content_html
-        }
-
         #
         # convert relative URLs to fully qualified URLs
         #
-        set content [::ad_html_qualify_links $content]
+        set content [::ad_html_qualify_links $content_html]
 
+        #
+        # We currently use the Notification web api to display SSE
+        # notifications, which does not support HTML markup.
+        #
+        set content [::ad_html_to_text $content]
+
+
         set user_locale [::lang::user::site_wide_locale -user_id $to_user_id]
         if { $user_locale eq "" } {
             set user_locale [::lang::system::site_wide_locale]
Index: openacs-4/packages/notifications/www/request-new.adp
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/notifications/www/request-new.adp,v
diff -u -r1.8 -r1.9
--- openacs-4/packages/notifications/www/request-new.adp	3 Jul 2015 11:04:08 -0000	1.8
+++ openacs-4/packages/notifications/www/request-new.adp	10 Jun 2025 13:19:57 -0000	1.9
@@ -4,3 +4,19 @@
 
 <h1>@page_title@</h1>
 <formtemplate id="subscribe"></formtemplate>
+<if @sse_notifications_p;literal@ true>
+  <script <if @::__csp_nonce@ not nil> nonce="@::__csp_nonce;literal@"</if>>
+    document.querySelector('form[name=subscribe]').addEventListener('submit', function (evt) {
+      if (this.elements.namedItem('delivery_method_id').value === '@sse_delivery_method_id@') {
+        evt.preventDefault();
+        // We need to ask the user for permission to display notifications.
+        Notification.requestPermission().then((permission) => {
+            // If the user accepts, we let the submission proceed.
+            if (permission === 'granted') {
+                this.submit();
+            }
+        });
+      }
+    });
+  </script>
+</if>
Index: openacs-4/packages/notifications/www/request-new.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/notifications/www/request-new.tcl,v
diff -u -r1.21 -r1.22
--- openacs-4/packages/notifications/www/request-new.tcl	17 Feb 2025 14:36:43 -0000	1.21
+++ openacs-4/packages/notifications/www/request-new.tcl	10 Jun 2025 13:19:57 -0000	1.22
@@ -36,8 +36,10 @@
                              -package_key notifications \
                              -parameter SSENotifications \
                              -default false]
+
+set sse_delivery_method_id [::notification::delivery::get_id -short_name sse]
+
 if {!$sse_notifications_p} {
-    set sse_delivery_method_id [::notification::delivery::get_id -short_name sse]
     set delivery_methods [lsearch -all -not -inline -index 1 \
                               $delivery_methods $sse_delivery_method_id]
 }