File: JASON-V0.5.2-pc.rar ...

Looks like you're trying to open the web-page locally (via file:// protocol) i.e. double clicking the .html file. Unfortunately modules only work via HTTP(s), so all you need to do is use a local web server. Popular choices include:

File: JASON-V0.5.2-pc.rar ...

file:// requests will not work, but you can run a local webserver (polymer serve, express, etc.) to use HTTP requests instead. You could even use the following Chrome extension to run a local webserver.

If you don't want to set up a local server you can actually (contrary to the previous answers) use the file:// protocol. To do so you have to run your browser with the --allow-file-access-from-files flag. Should work in all chromium based browsers such as Chrome, Opera, Brave etc. 041b061a72