Hi @jasperbier,
Both ad.nl and buienradar.nl websites block being displayed within other pages (such as a Foyer slide). This is probably because they want full control over how their website content is displayed.
The best way forward is to find the officially supported embed option per website.
For Buienradar for example you can find them here:
https://www.buienradar.nl/overbuienradar/gratis-weerdata
Or build a page that you can embed here:
https://gadgets.buienradar.nl/gadget/zoommap
At the moment Foyer has no features to embed parts of a site (except for the External Webpage slide format of course, to embed a full page). And no RSS feed or Facebook specific slide formats.
You could however build a social media wall (a combination of social media and RSS content merged together on a single page) using a service. Eg. https://walls.io/ or search Google for ‘build social media wall’. You will be able to add the page you build with their tools to a Foyer slide using the Extern Webpage slide format!
Hope this helps!
Technical stuff for those interested:
If you run into webpages that won’t work on Foyer slides, you could check your browser’s Developer Tools / Console to see why the page is blocked. Eg. this message is shown in Chrome when viewing mentioned slide, indicating that Buienradar denies being displayed within a slide:
Refused to display 'https://www.buienradar.nl/' in a frame because it set 'X-Frame-Options' to 'deny'.
Best,
Menno