Regression: Export throws 'access denied'

[ErisDS]

Exports are currently broken - they appear to do nothing, but are throwing 401 errors behind the scenes

Steps to Reproduce

1. Login to your Ghost admin
2. Go to the 'labs' page
3. Hit 'export'
4. Nothing happens
5. Terminal / server console shows 'Access denied' error

This has happened quite recently and may be related to #5972

Technical details:

• Ghost Version: master (latest commit: d81ddc9)
• Not browser or node version dependent

[acburdine]

I can look at this. Shouldn't be too difficult of a fix.

[channprj]

Same thing happened to me.

// Failed to load resource: the server responded with a status of 401 (Unauthorized)
{"errors":[{"message":"Access denied.","errorType":"UnauthorizedError"}]}