SNI based certificate didn't match for registry.npmjs.org using IBM Java

We are trying to create a proxy repository with https://registry.npmjs.org/ but we are unable to due to this certificate issue below. Any ideas on how to resolve this issue ?

jvm 1 | 2016-01-05 01:06:46,455-0500 WARN [proxy-3-thread-5] admin com.bolyuba.nexus.plugin.npm.proxy.DefaultNpmProxyRepository - Remote peer of proxy repository "npmjs Registry" [id=npmjs] threw a org.sonatype.nexus.proxy.RemoteStorageException exception. Connection/transport problems occured while connecting to remote peer of the repository. Auto-blocking this repository to prevent further connection-leaks and known-to-fail outbound connections until administrator fixes the problems, or Nexus detects remote repository as healthy. - Cause(s): Transport error while executing GET method [repositoryId="npmjs", requestPath="/", remoteUrl="https://registry.npmjs.org/"] > hostname in certificate didn't match: <registry.npmjs.org> != <a.sni.fastly.net> OR <a.sni.fastly.net> OR <a.sni.global-ssl.fastly.net>