The meetings schedule doesn't work anymore in certain browsers

[Oksfrei]

Hi guys,

I've discovered today that, for some reason, the embed calendar to schedule the meeting is not visible any more on our website. See the attachments. The first picture - Chrome, the second - Firefox

ChromeFirefox

Firefox shows the security error and asks to open the calendar in the new tab, Chrome doesn't display it at all. 
Once in a while, the calendar works until you refresh the page or click away, afterwards, it's not possible to see it any more.

I got the article from the HubSpot's customer service team about supported browsers: https://knowledge.hubspot.com/resources/which-browsers-are-supported-by-hubspot

Both Firefox on Windows and Chrome on Windows and Mac are up-to-date but still not displaying the calendar.

The piece of advice I got from the customer support is to "remove the embedded calendar > clear cache > embed it back again". It has been done but hasn't changed anything.

Are there any ideas why is it happening, and how can it be fixed? 

Thanks!

[NicoSchulz]

Firefox by defaults enabled advanced tracking protection. this will hife the meeting form completely for embeded meetings on e.g. a wordpress site. Also some hubspot documentation/marketing pages (from the company itself) are also displayed wrong/broken because of this protection.

Since the meeting tool is just hidden, this is a huge problem. Will this eventually get fixen?

[JLutz]

Agreed, completely unacceptable. It's been 2 years and this is still not fixed. I just signed on, and it looks like I have to use a contact form instead of this feature because many users don't use edge.

[dennisedson]

@Oksfrei ,

Did you resolve this?  I am able to get the calendar embed opened.  See screengrab