Plone 5 external resources

Plone Support Add-on Development
1

Is it possible to register an external javascript with Plone 5?

In my use case I need to add this resource: //code.responsivevoice.org/1.4/responsivevoice.js and get this error:

2018-04-20 09:08:49 ERROR plone.subrequest Error handling subrequest to http://localhost:8080/Plone2///code.responsivevoice.org/1.5/responsivevoice.js

And the expected was to point to the external content instead (adding just the current http or https) into the resource url.

The same should happen if for example I need to add a resource from a CDN.

2

plone.subrequest is for performing requests inside the Zope 2 tree only.
Either register your Javascript with the resource registry or include the JS directly from the template(e) that require this particular JS module.

3

Let's move the discussion into this bug report: https://github.com/plone/Products.CMFPlone/issues/2387