Test Designer 3: HTML5 and Web Application Compatibility

Test Designer 3 supports modern HTML5-based web applications and many of the technologies commonly used to build interactive web applications.
HTML5 introduced new HTML elements, attributes, APIs, and browser behaviors, while the broader modern web platform includes technologies such as JavaScript, CSS, browser APIs, and client-side frameworks.
For additional information about HTML and the web platform, see:
WHATWG HTML Standard
MDN HTML Documentation
HTML5 Compatibility
Test Designer supports most commonly used HTML5 features. However, compatibility can depend on how an application implements its UI components and JavaScript event handling.
Modern web applications can trigger actions through multiple mechanisms. For example, an application may use standard browser events, JavaScript event handlers, CSS pseudo-classes, custom components, or framework-specific event processing.
As a result, an action that works with a standard HTML element may behave differently when the same functionality is implemented through a custom component or JavaScript framework.
Click Actions
Test Designer provides multiple methods for interacting with clickable elements, including 
click and 
click2.
In most cases, the standard 
click action is sufficient. However, some applications implement additional JavaScript behavior or custom event handling that may require an alternative click method.
For example, an application may perform additional processing through JavaScript or use CSS pseudo-classes and framework-specific event handlers.
For more information about CSS pseudo-classes, see the MDN CSS pseudo-classes documentation.
If a standard click action does not produce the expected behavior, try the alternative click method or use an action specifically designed for the application's implementation.
File Upload
HTML5 does not prescribe a single implementation pattern for file-upload interactions across all web applications.
Applications may implement file selection using standard HTML elements, JavaScript, custom components, or framework-specific controls.
To accommodate these implementations, Test Designer provides multiple 
setFiles methods. The appropriate method depends on how the application's file-upload component is implemented.
If a file-upload action does not work as expected, verify the underlying HTML element and the application's JavaScript implementation, then select the appropriate 
setFiles method.
Authentication Support
Test Designer supports the following authentication mechanisms:
Basic Authentication
NTLM Authentication
Cookie-Based Authentication
Digest Authentication
ADFS with Kerberos Authentication
Active Directory Authentication
ADFS with NTLM Authentication when ADFS Extended Protection token checking is disabled
ADFS with Negotiate Authentication when ADFS Extended Protection token checking is enabled
AIQ Authentication
Authentication to the AIQ application itself can be configured using:
Internal AIQ credentials
LDAP authentication, which requires additional configuration
These authentication mechanisms are separate from authentication used by the web applications being automated.
Record and Playback Considerations
Test Designer uses browser instrumentation and injection mechanisms to provide recording and playback capabilities.
Certain application security mechanisms can interfere with these capabilities.
Man-in-the-Middle Detection
Applications or security tools that detect man-in-the-middle (MITM) activity may prevent Test Designer from recording, injecting, or interacting with a page correctly.
If an application uses certificate pinning, traffic inspection, or other mechanisms designed to detect intercepted browser traffic, additional configuration may be required.
Browser Certificate Validation
Test Designer may use certificates as part of its browser instrumentation and traffic interception mechanisms.
Depending on the browser and application configuration, certificate validation can prevent a page from loading correctly or cause the browser to display certificate warnings.
For example, browsers may reject certificates that do not match the certificate expected for a particular domain.
If a page displays an invalid-certificate error when accessed through Test Designer, verify the browser certificate configuration and the application's security policies.
JavaScript Framework Support
Test Designer 3 has been tested with commonly used JavaScript frameworks and web technologies, including:
React
AngularJS
Angular
jQuery
ExtJS
Bootstrap
Support for a framework does not necessarily guarantee compatibility with every application built with that framework.
Framework implementations can vary significantly, and applications may use custom components, third-party libraries, proprietary event handling, or newer framework versions that behave differently from the versions originally tested.
Compatibility Considerations
Although Test Designer is designed to support modern HTML5 applications and commonly used web frameworks, compatibility can depend on several factors, including:
Browser version
Framework version
Application architecture
Custom JavaScript event handling
Custom web components
Security and certificate policies
Third-party browser extensions
Application-specific DOM behavior
Framework-specific event handling
New framework releases, major version changes, forks, and highly customized implementations may require additional validation.
When an application does not behave as expected, first determine whether the behavior is specific to the application's implementation or to the underlying framework.
Support and Feature Requests
Appvance continuously evaluates compatibility with modern web technologies and commonly used frameworks.
If you encounter a web application that does not behave as expected in Test Designer, provide the relevant application details, the Test Designer action being used, and the observed behavior when submitting a support request.
Feature requests and compatibility issues can be submitted through the available Appvance support channels.
Last updated: August 25, 2026
If you have any feedback about this topic, please contact documentation@appvance.ai.