Empty RelatedItemsWidget when there's more than 173 relations.

[andreesg]

Using the RelatedItemsWidget, with more than 173 relations, in a Page content type results in a “ERR_CONNECTION_RESET” status when @@getVocabulary is requested.

This results in an empty related items field.

Dependencies:

plone.app.contenttypes = 1.1.x
plone.app.widgets = 1.x
Plone = 4.3.x

[vangheem]

Can you move this issue to mockup? I imagine you're hitting the max size for a GET request and we might have to, in a smart way, detect the size of the query string and use POST when necessary.

Is it a Plone error or a browser error?

[andreesg]

Thanks for your reply.

Yes, sure I can move the issue to mockup. It will also be nice to have a solution for Plone 4.x

I found the error in the Chrome browser console. The request doesn't get to the Plone backend.

[andreesg]

Thanks for the tip.

Indeed changing from GET to a POST solves the problem.
Currently the GET method is hardcoded.
I changed it into a POST.

Is it possible to accept my merge or do you prefer to do it differently? #116