Frame with weather api shows “404 page not found”

[Eduardo]

Dear community,
3 days ago I installed a new raspi and iobroker on it with the script from the documentation. I am new to visualization topics, but I learned that vis-2 is the newest out-of-the-box visualization environment.
So I used the vi-2-editor and searched the web for a weather widget, which I found on a German website wetter.online.de.
They offer a iframe with the code:

<iframe width='300' height='200' name='CW2' style='border:1px solid;border-radius:10px;border-color:#ffbe00;' src='https://api.wetteronline.de/wetterwidget?gid=10382&modeid=CW2&seourl=berlin&locationname=Berlin&lang=de'></iframe>

I inserted this in the iframe object in the vis-2-editor - see screenshot below. But I only receive “404 page not found” (screenshot).
Can someone help me with that?
Or give me another approach how to implement a quick easy weather widget in vis2?

Many thanks
Best regards
Eckhard

[Homoran]

@eduardo warum auf einmal in Englisch?
Du hast doch bisher in deutsch gepostet

[peterfido]

@eduardo Als Adresse muss nur die URL rein, nicht der iFrame-Code drumherum. Also nur

https://api.wetteronline.de/wetterwidget?gid=10382&modeid=CW2&seourl=berlin&locationname=Berlin&lang=de
 

[mcm1957]

As long as this topic is in ENGLISH SECTION please write in english.
@Homoran feel free to move to german and delete my post if this discussion should go on in german.