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frontend/src/static/js/pages/ProfileMediaPage.js

@@ -168,25 +168,28 @@ class ProfileMediaPage extends Page {
         });
 
         if (isSelected) {
-            if (window.parent !== window) {
-                const baseUrl = window.location.origin;
-                const embedUrl = `${baseUrl}/embed?m=${mediaId}`;
+            const baseUrl = window.location.origin;
+            const embedUrl = `${baseUrl}/embed?m=${mediaId}`;
 
-                window.parent.postMessage({
-                    type: 'videoSelected',
-                    embedUrl: embedUrl,
-                    videoId: mediaId,
-                }, '*');
-            }
+            const sendPostMessage = () => {
+                if (window.parent !== window) {
+                    window.parent.postMessage({
+                        type: 'videoSelected',
+                        embedUrl: embedUrl,
+                        videoId: mediaId,
+                    }, '*');
+                }
+            };
 
-            // Mark media as shared so LTI users in the course can access it
+            // Share first, then notify parent — postMessage can cause parent to navigate away
+            // which would cancel an in-flight fetch if called in the wrong order
             fetch(`/api/v1/media/${mediaId}/share`, {
                 method: 'POST',
                 headers: {
                     'X-CSRFToken': this.props.bulkActions.getCsrfToken(),
                     'Content-Type': 'application/json',
                 },
-            }).catch(() => {});
+            }).then(sendPostMessage).catch(sendPostMessage);
         }
     }
 

lti/views.py

@@ -695,7 +695,10 @@ class EmbedMediaLTIView(View):
         media = get_object_or_404(Media, friendly_token=friendly_token)
 
         lti_session = validate_lti_session(request)
-        can_view = False
+        if media.state in ["public", "unlisted"]:
+            can_view = True
+        else:
+            can_view = False
 
         if lti_session and request.user.is_authenticated:
             context_id = lti_session.get('context_id')
@@ -717,6 +720,7 @@ class EmbedMediaLTIView(View):
                             rbac_group=resource_link.rbac_group,
                         ).exists()
                         if has_course_access:
+                            # create an entry so it shows up under shared with me
                             MediaPermission.objects.get_or_create(
                                 user=request.user,
                                 media=media,
@@ -729,20 +733,8 @@ class EmbedMediaLTIView(View):
                 except Exception:
                     logger.exception('EmbedMediaLTIView: error checking course access for user=%s media=%s', request.user, friendly_token)
 
-            if not can_view and media.state == 'private':
-                has_rbac_access = media.category.filter(
-                    is_rbac_category=True,
-                    rbac_groups__members=request.user,
-                ).exists()
-                has_direct_permission = MediaPermission.objects.filter(
-                    media=media,
-                    user=request.user,
-                ).exists()
-                if has_rbac_access or has_direct_permission:
-                    can_view = True
-
-        if not can_view and media.state in ["public", "unlisted"]:
-            can_view = True
+            if not can_view and request.user.has_member_access_to_media(media):
+                can_view = True
 
         if not can_view:
             return JsonResponse({'error': 'Access denied', 'message': 'You do not have permission to view this media'}, status=403)