Designer: file:// Protocol Support

Issue
Appvance Designer does not support automating pages opened directly using the 
file:// protocol.
Solution
To automate a local HTML page with Designer, serve the page through a web server instead of opening it directly with the 
file:// protocol.
Start a web server that serves the directory containing your HTML pages.
Open the page using its HTTP or HTTPS URL, for example:
http://localhost:8080/index.html
Open the page in Designer using the web server URL.
Create or run your automation against the page served through HTTP/HTTPS.
Note: Opening the page directly from the local file system using a URL such as 
file:///C:/path/to/page.html is not supported for Designer automation.
Last updated: August 19, 2026
If you have any feedback on this topic, please contact us at documentation@appvance.ai.