luci-app-dawn: Fix TypeError undef (reading '0')

Fixes error with hearing map showing:

```
Cannot read properties of undefined (reading '0')
```

Signed-off-by: Sean Khan <datapronix@protonmail.com>

diff --git a/applications/luci-app-dawn/htdocs/luci-static/resources/view/dawn/hearing_map.js b/applications/luci-app-dawn/htdocs/luci-static/resources/view/dawn/hearing_map.js
index 8b93fbfd6d09e54c4d507c1070bac5c22fe85df9..fdf840e4ba4011801a98ddddb6efe3c642bfd59c 100644 (file)
--- a/applications/luci-app-dawn/htdocs/luci-static/resources/view/dawn/hearing_map.js
+++ b/applications/luci-app-dawn/htdocs/luci-static/resources/view/dawn/hearing_map.js
@@ -90,9 +90,11 @@ return view.extend({
                                                        ap[1].score
                                                ]
                                        }
+                                       return undefined;
                                })
                                
                        }).flat();
+                       clients = clients.filter(client => client !== undefined);
 
                        cbi_update_table(hearing_map_table, clients, E('em', _('No clients connected.')));