james.iwate

Thank you very much for your reply. The error log consists of PHP Warnings but nothing about Ultimate Member. HOWEVER, using the WP Debugging Plugin, I can see the following syntax error message when trying to upload the photo:

ERROR: SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data

It seems like now the only time we get the invalid nonce error is when the user’s login page was not reloaded in the browser and this invariably happens with mobile devices rather than PCs. Now, though, the error message is much more user friendly. Instead of the “invalid nonce” error and a white screen the login page reloads with a message that the page was probably cached and to try again. This is MUCH better, @champsupertramp , did you make this change?

Hello, I thought I would provide one last update. I am not confident enough to say the issue is completely resolved because I, myself, got the invalid nonce error once yesterday, but, to my knowledge, over 100 site users have not received this error in two weeks. Here is what I did:

First, my cache plugin was not disabling cache. Therefore, I have to write the following into the httpd file of the server to make sure cache was disabled for the login pages

<IfModule mod_cache.c>
CacheDisable https://mysite/login
    CacheDisable https://mysite/logout
    CacheDisable https://mysite/wp-.*\.php
    CacheDisable https://mysite/index\.php
    CacheDisable https://mysite/register
    CacheDisable https://mysite/user
</IfModule>

Second, after doing this, I was still having problems (When I clicked on the ulitmate member ‘logout’ button; I would not be logged out). I deleted the site data on my browser and turned off all the plugins except ultimate member. This seemed to resolve the problem.

Third, I had some code in my ipconfig file that made it possible for the superadmin to visit the dashboards of various sites on the multisite without logging in. I deleted this code. This caused the “invalid nonce” error to disappear on the child sites of my multisite. The bad code is below:

define( 'COOKIE_DOMAIN', '');
define( 'ADMIN_COOKIE_PATH', '/' );
define( 'COOKIEPATH', '' );
define( 'SITECOOKIEPATH', '' );*/

Ultimate member seems to have updated its login.php form on June 1, 2020, that is when my invalid nonce problems began.

Again, I did get the error yesterday accessing my site on a browser I seldom use(google chrome) on my mac. I do not know if the reason for this was because I had not deleted the browser cache after resolving the issue with the site or if there is still a problem. However, I am marking this issue as resolved as currently, I cannot replicate the error.

@champsupertramp ,
Thank you for this. I have a lot of classes today but will test it by Monday and let you know how it goes!

Hi @champsupertramp ,

The issue is not resolved, I am waiting to here back from the Server administrator about the hosting settings. I have confirmed that the login page is indeed being cached even though I set the my caching plugin to exclude it.

Also, the problem has worsened. Now, I cannot even log out of some sites on my multisite!

I will update the thread when there is a resolution.

Could you leave this thread as unresolved?

James

• This reply was modified 5 years, 7 months ago by james.iwate.

@visi19 ,
Thanks for the reply and sorry it took me so long to get back to you. I discovered the problem. Somehow the login customizer page template was set to the default page template rather than the login customizer template. When I set the template to login customizer I could see the login page in the theme customizer.
Thanks for the plugin recommendation!
James