Fix for web-to-lead/case not working as of SF endpoints update

Salesforce updated the W2C and W2L endpoint in April/May 2018. This impacts the plugin as it is never updated. Here’s how to fix the issue yourself:

In /gravity-forms-salesforce/inc/web-to-lead.php, on line 711, change:

$sub = apply_filters( ‘gf_salesforce_request_subdomain’, ($test ? ‘test’ : ‘www’), $test );

to:

$sub = apply_filters( ‘gf_salesforce_request_subdomain’, ($test ? ‘test’ : ‘webto’), $test );