AdaptiveCards: [Rendering] Discrepancy (in js and C# libraries) while rendering an AC template containing an invalid "$when" condition

Target Platforms

NodeJS

SDK Version

latest

Application Name

Microsoft Search

Problem Description

We observe that, when the Adaptive card contains an invalid $when condition (an example of which is given below)

Example: “$when”: “https://searchuxcdn.azureedge.net/designerapp/images/servicenow-icon.png!=\“\””

The C# Templating library throws an exception, when we try to bind the template with data -> adaptiveTemplate.Expand(source), with the following exception message: “String was not recognized as a valid Boolean.”

However, the JS library treats it as a valid string and displays the result evaluating the condition to true. Can this discrepancy be fixed ?

Screenshots

No response

Card JSON

{
    "type": "AdaptiveCard",
    "body": [
        {
            "type": "TextBlock",
            "size": "Medium",
            "weight": "Bolder",
            "text": "${title}",
            "$when": "https://searchuxcdn.azureedge.net/designerapp/images/servicenow-icon.png!=\"\""
        }
    ],
    "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
    "version": "1.5"
}

Sample Code Language

C#

Sample Code

No response