[Authoring] Partially swiping on a carousel control displays a blank canvas instead of a preview of next page.

Target Application

Any

Application Operating System

Windows

Schema Version

1.6

Problem Description

Using a finger/mouse to pan an adaptive card carousel page could be better. If the user presses & holds a page, then drags the page far to the left or right (well past the edge of the control), the carousel can show a completely blank gray area. Letting the finger go snaps the new page in.

Expected Outcome

A preview of the next page should be shown

Actual Outcome

A blank canvas is shown

Card JSON

{
	"$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
	"type": "AdaptiveCard",
	"version": "1.6",
	"body": {
		"type": "Carousel",
		"timer": 5000,
		"pages": [
			{
				"type": "CarouselPage",
				"id": "firstCarouselPage",
				"selectAction": {
					"type": "Action.OpenUrl",
					"title": "Click for more information about the first carousel page!",
					"url": "https://adaptivecards.io/"
				},
				"items": [
					{
						"type": "Image",
						"url": "https://adaptivecards.io/content/cats/1.png",
						"altText": "Cat",
						"size": "medium"
					}
				]
			},
			{
				"type": "CarouselPage",
				"id": "theSecondCarouselPage",
				"items": [
					{
						"type": "Image",
						"url": "https://adaptivecards.io/content/cats/2.png",
						"altText": "Cat with bandana",
						"size": "medium"
					}
				]
			},
			{
				"type": "CarouselPage",
				"id": "last-carousel-page",
				"items": [
					{
						"type": "Image",
						"url": "https://adaptivecards.io/content/cats/3.png",
						"altText": "That's a cool cat!",
						"size": "medium"
					}
				]
			}
		]
	},
	"actions": [
		{
			"type": "Action.OpenUrl",
			"title": "See more",
			"url": "https://adaptivecards.io"
		},
		{
			"type": "Action.OpenUrl",
			"title": "Another action",
			"url": "https://adaptivecards.io"
		}
	]
}

Repro Steps

No response

Start by reproducing the swipe behavior on Windows with the supplied Adaptive Card JSON and inspect the carousel control's pan and page-rendering entry points. Confirm that dragging partially toward another page shows a preview rather than a blank gray canvas, while release still snaps to the new page.