Iframe - Webpage not connecting

Hi Everyone,
I have looked and can’t find anything that directly relates and have tried some other suggestions but I am unable to get both the following pages to load when using iframe (webpage card) in Homeassistant (I have managed to get this working with AirGradient and Waze):

Council Bin collection datee: Webpage fails to connect ( www.malvernhills.gov.uk refused to connect.)
https://swict.malvernhills.gov.uk/mhdcroundlookup/HandleSearchScreen

Tigo Solar Panel Monitoring: Page loads, i login and then get a 400 bad request
https://ei.tigoenergy.com/

Any help would be appreciated.

Thanks.

I have very little experience with the Webpage Card. Your first URL doesn’t render anything, and the second renders without error.