[jboss-jira] [JBoss JIRA] (ELY-1693) Update AcmeClientSpi to make use of POST-as-GET instead of GET

Update AcmeClientSpi to make use of POST-as-GET instead of GET -------------------------------------------------------------- Key: ELY-1693 URL: https://issues.jboss.org/browse/ELY-1693 Project: WildFly Elytron Issue Type: Task Components: API / SPI Reporter: Farah Juma Assignee: Farah Juma Priority: Major Fix For: 1.8.0.CR1 The ACME protocol has been updated to replace unauthenticated GET requests to resources with “POST-as-GET” requests (this change was made during the final stages of IETF review). Once support for "POST-as-GET" requests has been added to Let's Encrypt's staging and production endpoints, we'll need to update our AcmeClientSpi to make use of "POST-as-GET" requests. Let's Encrypt will be removing support for unauthenticated GET requests on Nov. 1, 2019. More details can be found here: https://community.letsencrypt.org/t/acme-v2-scheduled-deprecation-of-unau...