[Rendering] Every other customMediaPlayer Video fails to initialise correctly

Target Platforms

NodeJS

SDK Version

1.5

Application Name

it's possible to replicate this issue here: https://adaptivecards.io/designer/ (this is where I took the screenshot)

Problem Description

Having more than one inline custom Media (youtube, vimeo, dailymotion) causes every second video to fail to render.

The issue is the use of global flags in the ICustomMediaPlayer urlPatterns, these are causing every other call to pattern.exec to fail to find matches (state is maintained as lastIndex until all instances are found, at which point a null is returned and the pattern state reset).
This causes every other video to default to use a HTML5MediaPlayer instead of the appropriate provider.

A quick fix would be to remove the global flags since each mediaSource only needs to contain one video url.

Screenshots

Card JSON

{
    "type": "AdaptiveCard",
    "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
    "version": "1.5",
    "body": [
        {
            "type": "Media",
            "sources": [
                {
                    "url": "https://www.youtube.com/watch?v=awqTmdI6dRw"
                }
            ]
        },
        {
            "type": "Media",
            "sources": [
                {
                    "url": "https://www.youtube.com/watch?v=awqTmdI6dRw"
                }
            ]
        }
    ]
}

Sample Code Language

No response

Sample Code

No response

Start by tracing ICustomMediaPlayer.urlPatterns and the pattern.exec calls used during media rendering. Reproduce the issue with the supplied Adaptive Card containing two YouTube Media elements, then verify that each inline provider initializes correctly instead of falling back to HTML5MediaPlayer.