Getting it to work on Acquia's dev cloud

First thing - Acquia have a standard solution for adding HTTP authentication to your site that involves adding this line to your .htaccess file:

RewriteRule .* - [E=REMOTE_USER:%{HTTP:Authorization},L]

I think this is stopping it from working.

Removing that line from the .htaccess file didn't solve the problem.

Neither of the code snippets worked either.

For anyone who has access to it, I opened a discussion in Acquia's forums: https://network.acquia.com/node/1888875

Yes, I tried both the code snippets, quit the app and cleared the sessions table each time. No luck. The site does use Varnish, might that make a difference?

Another thing to note. Originally I was actually using 7.x-1.6 - I thought I'd updated to 1.8 but I hadn't, apologies for that.

So, with 1.8 and code snippet #2 the built-in tester works and returns the following:

HTTP code: 200
Valid JSON: {"meta":{"version":"1.4","drupal_version":"7.8","version_match":true},"content":{"callbacks":["comments","content","content-forms","users","cache"],"modules":["comment","mollom","node","field","user","system"],"permissions":["access comments","administer comments","post comments","post comments without approval","access content","administer nodes","create \/ edit content with Drupad","administer users","administer site configuration"]}}

However the app still fails with the "The request didn't succeed" error.

@jchatard: FYI Byron Norris at Acquia is working on it too, I've recommended he get in contact with you.

I believe that the problem I was running into with the specific site was due to some HTTP Authentication configuration that was set up, but the .htaccess snippet in this blog post is compatible: http://www.mc-kenna.com/drupal/2012/04/simple-http-authentication-for-dr... I'm waiting for that client to confirm it with their account, but it should be a-ok.

Thanks for checking it.