500 error on preview

Developing with Prismic
1

Hello guys I have the same exact problem!
I keep having a 500 error while trying to see previews on my production website.

This is what I do :

  • Make a change in prismic UI for an already published document
  • Click save then the preview button
  • This redirects me to my website on the correct url but it shows the 500 page instead

This does seem to work locally (I've set up a preview to my localhost and this does work perfectly)
The cookie content is as follow :

{"_tracker":"Pe2wCMSV","utopix-next-website.prismic.io":{"preview":"https://utopix-next-website.prismic.io/previews/Ydx6IBIAACoAnyF-:YdyERhIAACwAn1Wn?websitePreviewId=YaoybhMAAC4AyBUC"}}

The only way I found to get rid of the 500 after that is to manually remove the cookies in the application tab.

I've already tried the troubleshooting guide but this didn't help me.

I can provide a copy of my project in private message if needed, thanks for your help

3

Hi Romain,

I'll be happy to help you debug this. Have you made any changes in your project recently?

Thanks.

4

Hello Phil :slight_smile:

Yes I've upgraded prismic client to v6 a few days/weeks ago and followed the migration guide but I'm not sure that's where the problem come from

5

In that case, it's related to this thread: