Open-event-frontend: Admin Translations downloads error

[mrsaicharan1]

Describe the bug
Downloading admin translations gives the following error

127.0.0.1 - - [07/Jun/2019 21:13:30] "OPTIONS /v1/admin/content/translations/all HTTP/1.1" 308 -

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Admin Panel`
2. Click on 'content'
3. Click on download translations

Expected behavior
Should download zip file

Additional details (please complete the following information):

• MacOS Mojave

Additional context
Working on it

[mrsaicharan1]

This is an FE issue. I've tested the API locally with the JWT token of an admin user. Was able to download it. @CosmicCoder96 Please transfer this to FE.
Also, this was working fine before. Don't know what happened. Would be great if you could take a look.

[kushthedude]

@mrsaicharan1 The following is not a FE issue , I checked into it and found that the following is due to the CORS , We need to check for Access Control headers returned from header, So that preflight response made by browser can be successful

[iamareebjamal]

@CosmicCoder96 Please add frontend sites to CORS allow origin

[mrsaicharan1]

@iamareebjamal Was this removed recently? It used to work before.

[iamareebjamal]

IDK

[kushthedude]

@mrsaicharan1 AFAIK due to old dependency and packages , the following error was not getting shown , still this was present from before

[uds5501]

@mrsaicharan1 I am taking up this one, fixed it on my local!

[CosmicCoder96]

@kushthedude @uds5501 It's never ~lupus~ CORS. 😄
When there is an internal error on serve, it fails to return anything, which throws a CORS exception, as 500 is not an acceptable status code.

[kushthedude]

Closed in #3336