How to Trust a JupyterLab Notebook

 If you have ever encountered the "JupyterLab is not trusted" message, that is a security warning feature designed to prevent malicious code like JavaScript or HTML in a notebook cell from automatically executing.

However, in some cases it is not a malicious code but JupyterLab erroniously classified it as one. In this post, I will guide you on how to fix it. That is how to trust the code in the JupyterLab Notebook.

You can mark a notebook as trusted using the GUI (the browser user interface) or the command line. I will focus on using the user interface for this guide.

Using the user interface (JupyterLab) to Trust a Notebook

Step 1: Open the notebook in JupyterLab

Step 2: Open the Command Palette by going to View >> Activate Command Palette

Step 3: Type 'trust' and select the "Trust Notebook" command as seen below.

That is it. Now re-start the JupyterLab server and re-run all the code cells.

Thank you for following.