My company is currently using BitBucket Server 7.4.4. It is installed on a Windows server with a SQL Server database. All connections between this server and the outside world is filtered by a proxy that performs DPI (intercept HTTPS connections) and prevent connections to any resources except for the Atlassian marketplace.
I am testing an upgrade from server licenses and some of my apps such as PR-Booster need to be updated to this license type. However when clicking on the "update to data center" button, I get an error with this stack trace below:
POST /rest/plugins/1.0/com.bit-booster.bb-key/license/crossgrade HTTP/1.1" c.a.u.r.r.AppCrossgradeResource Error crossgrading license for com.bit-booster.bb
com.atlassian.upm.mac.HamletException$HttpException: error 400
at com.atlassian.upm.mac.HamletClientPacProxyImpl.getRedirectLocationFromRequest(HamletClientPacProxyImpl.java:211)
at com.atlassian.upm.mac.HamletClientPacProxyImpl.crossgradeAppLicense(HamletClientPacProxyImpl.java:270)
at com.atlassian.upm.rest.resources.AppCrossgradeResource.getLicense(AppCrossgradeResource.java:47)