Tutorials - React StrictMode triggers warnings

[GrazianoRamiro]

Using React StrictMode https://reactjs.org/docs/strict-mode.html triggers the following issue on the console:

After making some research, it was found that is being caused by some components coming from Material UI. There are some open issues on their repo:

• Warnings in strict mode mui/material-ui#13394
• Migrate from findDOMNode to refs mui/material-ui#13221

A solution at the moment could be to disable the strict mode completely, but it's preferred to keep it and have the error on the console as it could detect potential issues on our code.