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API Error with Theme Preview

Vincent Besanceney

Mar 17, 2013 04:01AM EDT

Greetings all,

I get the following error when I select and preview a theme:

"API Error
The theme is not able to contact Koken's API. Ensure that your host is not blocking loopback connections."

Note that I'm using the backend through https.

Best regards,


Up 1 rated Down

Team NetObjects Koken Agent

Mar 17, 2013 11:35PM EDT

Vincent – Does the published site work properly? Can you send me a login to your admin at support[at] so I can take a look?

Up 8 rated Down


Mar 20, 2013 09:03AM EDT
i've got the same Error. How to solve this? Thanks
Up 7 rated Down

Robert Overgoor

Mar 21, 2013 10:40AM EDT
i have the same error.

API Error

The theme is not able to contact Koken's API. Ensure that your host is not blocking loopback connections.
Up 5 rated Down


Mar 21, 2013 06:13PM EDT
same problem for me too
Up 0 rated Down


Mar 22, 2013 02:16AM EDT
And for me too... API Error
Can you help?
Up 10 rated Down


Mar 22, 2013 05:06AM EDT
Same here. In HTTP or HTTPS.
Sometimes, it's like the cache is written et I can see a empty website, but on refresh there is again "API Error ...."
Up 1 rated Down


Mar 22, 2013 06:30AM EDT
I've also had this message when koken is installed in a password protected folder. My hosting doesn't use loopback connections (mediatemple). Tried emailing support here but no reply?
Up 6 rated Down

Team NetObjects Koken Agent

Mar 22, 2013 01:11PM EDT

Two things to check if you have this issue:

1) Make sure you have not setup any password protection on the Koken folder, either via your host’s control panel or your .htaccess file. This interferes with Koken so it should be disabled.

2) Check with your host to see if they block loopback connections. If so, Koken will not work on this server at this time.

If neither of those apply, email us an FTP login to support[at] and we’ll take a look.

Up 6 rated Down


Mar 22, 2013 07:25PM EDT
3) Make sure you don't have a shitty SSL certificate who make error like this (my case) :
Error : SSL certificate problem, verify that the CA cert is OK. Details: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
To solve this, renew your certificate or add this :
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
Line 290 in Koken.php to avoid the checking of your certificate
Up 3 rated Down


Apr 04, 2013 04:48AM EDT
Whats the IP adres where the loopback connection too connect/ my host can the ip open.
Up 2 rated Down


Apr 09, 2013 06:20PM EDT
After a quick look here's the url:

=> do a nslookup

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