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Demo website isn't working

See original GitHub issue on loading, gives the following error in browser console

Uncaught (in promise) TypeError: Cannot read property 'join' of undefined
    at updateColormap (main.js:593)
    at initUI (main.js:344)
    at main.js:1287

Issue Analytics

  • State:open
  • Created 3 years ago
  • Comments:11

github_iconTop GitHub Comments

dionhaefnercommented, Jul 20, 2020

Whoops! Thanks for letting us know.

The demo server runs an outdated version of Terracotta. I’m not sure how to best fix this (and avoid regressions in the future). Perhaps the Satlas and TC demo server should be separate deployments, where the latter one is deployed automatically on new releases (but they can use the same data). Would that be doable @j08lue?

j08luecommented, Mar 25, 2021

Oh, sorry about that. The above URL is the Terracotta server deployment, so there is nothing to see there, but you can check out the REST API: the docs are at

To see it in action in the browser, you actually need to run the demo web client yourself, like

terracotta connect

You can also see the same server in action here: since we use it to feed that web app. Not the most recent viewer we have using Terracotta, but gives you an impression. We have probably 30 React web apps that show data hosted in various Terracotta deployments for various projects. Perhaps check out or .

I’ll still fix the docs so they point to a working deployment, of course.

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