function readOnly(count){ }
Starting November 20, the site will be set to read-only. On December 4, 2023,
forum discussions will move to the Trailblazer Community.
+ Start a Discussion
Mreedula Singh 3Mreedula Singh 3 

Visualforce page showing ERR_TUNNEL_CONNECTION_FAILED error

Hi,

We have created few visualforce pages in our org. They are running smoothly in Production and one sandbox, but not working in another sandbox. The code is same in all the three orgs. Following is the error :

User-added image

Thanks,
Mreedula
bhanu_prakashbhanu_prakash
Hi Mreedula,

Issue is with Proxy setup in your browser please check them .
https://developer.salesforce.com/forums/?id=906F0000000BPFtIAO
https://www.drivereasy.com/knowledge/err-tunnel-connection-failed-error-chrome-solved/

let us know if it helps you and mark it best if it helps you

Thanks, 
Bhanu Prakash
visit ForceLearn (https://www.forcelearn.com)for salesforce Latest Updates and development tips
Mreedula Singh 3Mreedula Singh 3
Hi bhanu_prakash,

Thanks for the reply. Actually, the pages work fine in the same browser for Production and other sandbox.
We are facing this issue with an another sandbox in this same browser.
This might not be a browser issue.

Thanks
Mreedula