Redbiom interface is slow to load

[adswafford]

Following steps in #2569 , click on + symbol to show the desired artifact to retrieve the sample of interest:
At first click:

And nearly 30 min later the screen looks the same:

[antgonza]

Check URGENT email to the qiita-admin. Anyway, the issue here is: #2570. We are currently gonna fix via nginx. Closing as this is a duplicate of #2570.