Dynamics 365 Access Xrm from HTML Page
In a Dynamics 365 web resource such as an HTML page, you may need to access Xrm properties, such as Xrm.Page.context.getClientUrl(). Adding this to the page may throw an error (or actually display no error) if the HTML page cannot access the resource. To get this to work, add window.parent.opener like below: window.parent.opener.Xrm.Page.context.getClientUrl()