BotFramework Carousel CardAction Button Doesn't OpenUrl - carousel

Question

I have a carousel, but it is not opening the URL when the CardAction button is clicked in Skype. It is working in Emulator though. Is there a reason for this?
foreach(var botAmazonItem in botAmazonItems)
{
List<CardImage> cardImages = new List<CardImage>();
cardImages.Add(new CardImage(url: $"{botAmazonItem.imageUrl}"));
List<CardAction> cardButtons = new List<CardAction>();
CardAction plButton = new CardAction()
{
Value = botAmazonItem.detailsPageUrl,
Type = ActionTypes.OpenUrl,
Title = botAmazonItem.title
};
cardButtons.Add(plButton);
HeroCard plCard = new HeroCard()
{
Title = $"{botAmazonItem.title}",
Subtitle = $"{botAmazonItem.formattedPrice}",
Images = cardImages,
Buttons = cardButtons
};
Attachment plAttachment = plCard.ToAttachment();
replyToConversation.Attachments.Add(plAttachment);
}

Answer 1

Try changing your "value" links to https:// rather than http://. Skype requires all external links to be https://
The following code (based on yours) works:
var botAmazonItems = new List<AmazonBotItem>();
botAmazonItems.Add(new AmazonBotItem() { imageUrl = "http://placekitten.com/200/300", title = "Microsoft", formattedPrice = "$8.95", detailsPageUrl = "https://www.microsoft.com" });
botAmazonItems.Add(new AmazonBotItem() { imageUrl = "http://placekitten.com/300/300", title = "Bot Framework", formattedPrice = "$2.95", detailsPageUrl = "https://www.botframework.com" });
var reply = activity.CreateReply();
reply.AttachmentLayout = AttachmentLayoutTypes.Carousel;
reply.Attachments = new List<Attachment>();
foreach (var botAmazonItem in botAmazonItems)
{
List<CardImage> cardImages = new List<CardImage>();
cardImages.Add(new CardImage(url: $"{botAmazonItem.imageUrl}"));
List<CardAction> cardButtons = new List<CardAction>();
CardAction plButton = new CardAction()
{
Value = botAmazonItem.detailsPageUrl,
Type = ActionTypes.OpenUrl,
Title = botAmazonItem.title
};
cardButtons.Add(plButton);
HeroCard plCard = new HeroCard()
{
Title = $"{botAmazonItem.title}",
Subtitle = $"{botAmazonItem.formattedPrice}",
Images = cardImages,
Buttons = cardButtons
};
Attachment plAttachment = plCard.ToAttachment();
reply.Attachments.Add(plAttachment);
}