I reported this problem to Garmin thinking it was an issue with their plugin. They tested and were able to duplicate this problem using IE11 and suggested that geocaching.com needs an update to their page. See Garmin's response below:
Thank you for your reply.
I am able to duplicate the issue you describe in IE11. However, I am not able to duplicate it in Chrome or Firefox.
In Chrome, I receive this error message initially, but (by design) Chrome blocks the plugin from running on the page. Once I follow the instructions included in our correspondence below in the device detection window that appears (Choose Always run on this site, then refresh the page), it works.
Since the plugin works correctly in IE11 on all Garmin-hosted sites, I suspect geocaching.com simply needs to update their implementation of our plugin on their page for it to work correctly.
I would recommend contacting geocaching.com to inform them of this issue so that they may correct it, and for the time being use one of the other two browsers that are known to work.
I apologize for the inconvenience this has caused.
With Best Regards,
While I have an alternative browser that I can set up (Chrome, I prefer to use Internet Explorer and would really like to have a fix for this issue.
Here are the instructions from Garmin for setting up the Chrome browser:
Chrome blocks plugins by default, and will prompt to allow them on pages that use plugins. On these prompts, choose Always run on this site. Refreshing the page should then allow the plugin to load. To allow the plugin to load without prompting on each page:
1. Open Chrome
2. In the address bar, type about:plugins
3. Press Enter (PC) or Return (Mac)
4. Locate Garmin Communicator Plugin
5. Select the Always Allowed box
6. Restart chrome
Regards,
oboegary & delaware hiker