As Appian provides a Web-based environment for building composite applications, we rely on a default configurations of supported Web browsers for testing. Because it's possible that your organization may enable or disable certain configurations that would impair your ability to use Appian features or access the Appian application, we recommend the following:
Additional configuration considerations are described below.
The Appian Process Modeler is supported for Edge, Internet Explorer 11, Firefox Chrome, and Safari.
To enable the Allow Programmatic Clipboard Access security option
This web browser API is used by modern web applications (such as Google Maps) to enable XML-based requests and responses from a web server/application server. It sends and receives XML and plain text data that is used to update the current web page without the need to load a new web page on the client. Internet Explorer allows you (or your system administrator) to disable the "Enable Native XML HTTP Support" setting on the Advanced tab of your Internet Options dialog box.
Internet Explorer has a feature called the "XSS Filter" that detects reflected cross-site scripting (XSS) vulnerabilities. Users can configure this feature on the Advanced tab of the Internet Options dialog box.
See also: Microsoft Cross-Site Scripting Filter