Title: RSS Widget error due to SSL
Last modified: August 21, 2016

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# RSS Widget error due to SSL

 *  Resolved [danhgilmore](https://wordpress.org/support/users/danhgilmore/)
 * (@danhgilmore)
 * [12 years ago](https://wordpress.org/support/topic/rss-widget-error-due-to-ssl/)
 * We recently moved one of our custom apps to require SSL and PKI certs. The app
   offers RSS feeds, and will load fine in a browser (with the users’ cert installed),
   but when I add the RSS URL to an RSS Widget, I receive:
 * **RSS Error: WP HTTP Error: NSS: client certificate not found (nickname not specified)**
 * I believe the solution would be for the browser to send the client’s cert, but
   not sure how to implement this. Any ideas?

Viewing 8 replies - 1 through 8 (of 8 total)

 *  [Doug Stewart](https://wordpress.org/support/users/zamoose/)
 * (@zamoose)
 * [12 years ago](https://wordpress.org/support/topic/rss-widget-error-due-to-ssl/#post-5139991)
 * Self-signed cert?
 *  Thread Starter [danhgilmore](https://wordpress.org/support/users/danhgilmore/)
 * (@danhgilmore)
 * [12 years ago](https://wordpress.org/support/topic/rss-widget-error-due-to-ssl/#post-5139992)
 * Good news: It’s not a WordPress issue.
 * Bad news: It’s an infrastructure problem, so I get to hurry up and wait 😉
 *  Thread Starter [danhgilmore](https://wordpress.org/support/users/danhgilmore/)
 * (@danhgilmore)
 * [11 years, 5 months ago](https://wordpress.org/support/topic/rss-widget-error-due-to-ssl/#post-5140280)
 * Doug – if it is, is that a problem?
 *  [Doug Stewart](https://wordpress.org/support/users/zamoose/)
 * (@zamoose)
 * [11 years, 5 months ago](https://wordpress.org/support/topic/rss-widget-error-due-to-ssl/#post-5140281)
 * Dan:
    Yes. cURL tries to verify the integrity of SSL certs and will error out
   unless told to ignore verification.
 * See, e.g. [https://wordpress.org/support/topic/server-self-connect-error-nss-client-cert-not-found?replies=6](https://wordpress.org/support/topic/server-self-connect-error-nss-client-cert-not-found?replies=6)
 * Basically, you need to run the equivalent of `curl -k`:
 * >  **-k, –insecure**
   > (SSL) This option explicitly allows curl to perform “insecure” SSL connections
   > and transfers. All SSL connections are attempted to be made secure by using
   > the CA certificate bundle installed by default. This makes all connections 
   > considered “insecure” fail unless -k, –insecure is used.
   > See this online resource for further details: [http://curl.haxx.se/docs/sslcerts.html](http://curl.haxx.se/docs/sslcerts.html)
 *  [Doug Stewart](https://wordpress.org/support/users/zamoose/)
 * (@zamoose)
 * [11 years, 5 months ago](https://wordpress.org/support/topic/rss-widget-error-due-to-ssl/#post-5140282)
 * See [http://wordpress.stackexchange.com/questions/44509/the-https-local-ssl-verify-filter](http://wordpress.stackexchange.com/questions/44509/the-https-local-ssl-verify-filter),
   and the WP references for [https://developer.wordpress.org/reference/hooks/https_local_ssl_verify/](https://developer.wordpress.org/reference/hooks/https_local_ssl_verify/)
   and [https://developer.wordpress.org/reference/hooks/https_ssl_verify/](https://developer.wordpress.org/reference/hooks/https_ssl_verify/)
   for more info on how to best filter and make cURL ignore the self-signed cert.
 *  Thread Starter [danhgilmore](https://wordpress.org/support/users/danhgilmore/)
 * (@danhgilmore)
 * [11 years, 5 months ago](https://wordpress.org/support/topic/rss-widget-error-due-to-ssl/#post-5140283)
 * I added that to a MU-plugin and now one box returns:
 * RSS Error: WP HTTP Error: NSS: client certificate not found (nickname not specified)
 * and the other returns:
 * RSS Error: WP HTTP Error: Peer certificate cannot be authenticated with known
   CA certificates
 *  Thread Starter [danhgilmore](https://wordpress.org/support/users/danhgilmore/)
 * (@danhgilmore)
 * [11 years, 5 months ago](https://wordpress.org/support/topic/rss-widget-error-due-to-ssl/#post-5140284)
 * Disregard the above. I’m now getting the same error on both servers
 * RSS Error: WP HTTP Error: Peer certificate cannot be authenticated with known
   CA certificates
 * In a MU-plugin, I’ve added the following:
 * add_filter(‘https_local_ssl_verify’, ‘__return_true’);
    add_filter(‘https_ssl_verify’,‘
   __return_true’);
 * and I still get the error…Ideas?
 *  Thread Starter [danhgilmore](https://wordpress.org/support/users/danhgilmore/)
 * (@danhgilmore)
 * [11 years, 5 months ago](https://wordpress.org/support/topic/rss-widget-error-due-to-ssl/#post-5140285)
 * I changed the filter to __return_false, and now I’m getting:
 * RSS Error: WP HTTP Error: NSS: client certificate not found (nickname not specified)

Viewing 8 replies - 1 through 8 (of 8 total)

The topic ‘RSS Widget error due to SSL’ is closed to new replies.

## Tags

 * [RSS](https://wordpress.org/support/topic-tag/rss/)
 * [SSL](https://wordpress.org/support/topic-tag/ssl/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 8 replies
 * 2 participants
 * Last reply from: [danhgilmore](https://wordpress.org/support/users/danhgilmore/)
 * Last activity: [11 years, 5 months ago](https://wordpress.org/support/topic/rss-widget-error-due-to-ssl/#post-5140285)
 * Status: resolved

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