[Plugin: All-in-One Event Calendar] Calendar doesn't display

I am having the same issue. Never times out just keeps spining on the cal page.

@AmpersandBooks
It looks like a theme issue to me.
You could archive your theme, link it here, and I will see what I can do.

Yani,
I am running it on a WP Multi Site and have tried the default 2010 and also on my main theme Canvas from Woo themes. I get the same error, which I believe is a 302…
the site is Here
using Canvas and here for the 2010 theme. Your help would be greatly appreciated as I think this plugin would be the best I have found for my communities if I can get it to work.

@Noll
Try disabling Google Plus and see if it makes any difference.

I can, but that was added today. I have had the issue much longer…

Google is removed, the issue has not resolved…

I am guessing it has something to do with the other calendar plugins I tried and deinstalled. Possible ?

@Noll
You are right, Google plus is not the problem.
It seems like a more complex issue.
Your website loads on domain.com while the ajax calls are made to subdomain.domain.com
Basically, the ajax calls fail and that’s why you see the neverending loading icon.
The plugin gets the location of admin-ajax.php by calling the following function: admin_url( 'admin-ajax.php' )
According to WP Codex there is another function for MU installs – network_admin_url
Can you try the following:
1. Open app/controller/class-ai1ec-calendar-controller.php in your text editor.
2. Locate the following line: 'ajaxurl' => admin_url( 'admin-ajax.php' ),
3. Change the line with this: 'ajaxurl' => network_admin_url( 'admin-ajax.php' ),
4. Save the file

Let me know if it changes anything.

Yani,
I made the change on line 586 of calendar-controller.php as noted above. It did not resolve the problem. I see that for multisite you need to look at network_admin_url.
Parameter? also, I suspect anyone using domain mapping is going to run into this problem?

@Noll
We are actually using the plugin on a MU install with the domain mapping plugin and it doesn’t cause any troubles. I am suspecting some sort of a configuration issue. I am out of ideas for now.

yani, looks now like the pointer is looking for admin-ajax.php in the wp-admin/network folder, when the file is wp-admin. folder.

@AmpersandBooks
Your problem is:

XMLHttpRequest cannot load https://sandbox.spcollege.edu/wp-admin/admin-ajax.php. Origin https://sandbox.spcollege.edu is not allowed by Access-Control-Allow-Origin.

Basically you need to make sure that your site url and home url are the same (wp-admin -> settings)

@Noll
The same issue happens on your websites:

XMLHttpRequest cannot load https://gamoms.org/wp-admin/network/admin-ajax.php. Origin https://alpharettamoms.net is not allowed by Access-Control-Allow-Origin.

It has to do with the domain mapping, I am not sure why it redirects from alpharettamoms.net to gamoms.org?
If you find what is causing it, you will solve the problem.

So you are using domain mapping with domain based network and not a path-based sub-directory network?

Yani, thanks for the assistance. I will see what I can come up with.

No problem, good luck!