This morning I started seeing the following error on all preview pages generated by an app running on my development machine:
This error message isn’t caused by the application, it’s because the generated HTML uses client-side LESS to render its CSS. The LESS processing had filled up local storage, because each preview generates new storage keys due to the ever-changing timestamp part of the URL.
The solution: here’s how to manually clear your browser’s local storage of any data whose keys match a particular value:
A sample of its use: