Display warning for Define Template Data in PHP

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Here is the info for NoteJS:

Sever Side Rendering with NodeJS

In this update you can use full Server Side data rendering for NodeJS! Your NodeJS template based web sites can fully empower now Server Connect for dynamic Server Side Data Rendering! What is Server Side Rendering Server side rendering is great for sharing content on platforms like Facebook, Twitter, LinkedIn and others which can’t read dynamic javascript content. The specific meta tags for each platform, as well as the general ones like title, description, author etc. can be rendered on th…

I am able to define variables in it but reopening it displays no saved variables.