[JavaScript] TextRun with empty text generates an uncaught exception that prevents the card from rendering

Platform

• JavaScript

Author or host

Host Name : Microsoft Search

Version of SDK

adaptivecards-designer@0.7.1

Details

In the below example, the $when condition ends up generating a TextRun with an empty text, which causes the card to fail rendering:

{
    "type": "AdaptiveCard",
    "version": "1.0",
    "body": [
        {
            "type": "RichTextBlock",
            "inlines": [
                {
                    "type": "TextRun",
                    "text": "{a}",
                    "$when": "{a==true}"
                }
            ],
            "$when": "{!!a==true}"
        }
    ],
    "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
    "$data": {
        "a": ""
    }
}

[dclaux]

BTW, TextBlock (and TextRun) with an empty text simply do not render, by design - there is no need to use a $when clause for that.

[atishayv]

@dclaux Its all working… Thanks for the clarification