If JavaScript is disabled in the browser, the form will appear to load correctly, but clicking the Generate button will simply cause the page to refresh to a cleared-out form.
More user-friendly behaviour in this scenario might be something like displaying a "JavaScript is required" warning message, making the button non-functional if JavaScript is disabled, etc.
My test conditions:
JavaScript disabled using the NoScript extension v. 11.0.23
Firefox 74.0 x64
Ubuntu 18.04.4 x64
If JavaScript is disabled in the browser, the form will appear to load correctly, but clicking the Generate button will simply cause the page to refresh to a cleared-out form.
More user-friendly behaviour in this scenario might be something like displaying a "JavaScript is required" warning message, making the button non-functional if JavaScript is disabled, etc.
My test conditions: JavaScript disabled using the NoScript extension v. 11.0.23 Firefox 74.0 x64 Ubuntu 18.04.4 x64