Plugin failing to install due to SSL issues

[FestivalBobcats]

This command is failing:

plugin -i medcl/elasticsearch-analysis-ik/1.2.6 -u https://github.com/medcl/elasticsearch-rtf/raw/master/plugins/analysis-ik/elasticsearch-analysis-ik-1.2.6.jar

The response:

-> Installing medcl/elasticsearch-analysis-ik/1.2.6...
Trying https://github.com/medcl/elasticsearch-rtf/raw/master/plugins/analysis-ik/elasticsearch-analysis-ik-1.2.6.jar...
Failed: SSLProtocolException[handshake alert:  unrecognized_name]
Trying http://download.elasticsearch.org/medcl/elasticsearch-analysis-ik/elasticsearch-analysis-ik-1.2.6.zip...
Trying http://search.maven.org/remotecontent?filepath=medcl/elasticsearch-analysis-ik/1.2.6/elasticsearch-analysis-ik-1.2.6.zip...
Trying https://oss.sonatype.org/service/local/repositories/releases/content/medcl/elasticsearch-analysis-ik/1.2.6/elasticsearch-analysis-ik-1.2.6.zip...
Trying https://github.com/medcl/elasticsearch-analysis-ik/archive/v1.2.6.zip...
Trying https://github.com/medcl/elasticsearch-analysis-ik/archive/master.zip...
Downloading .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................DONE
Installed medcl/elasticsearch-analysis-ik/1.2.6 into /usr/local/var/lib/elasticsearch/plugins/analysis-ik

Error while installing plugin, reason: IllegalArgumentException: Plugin installation assumed to be site plugin, but contains source code, aborting installation.

I dug a little deeper and tried to download the .jar with curl, and discovered it only worked when SSLv3 was forced.

The following command fails:

curl -o es-analysis-ik.jar -L https://github.com/medcl/elasticsearch-rtf/raw/master/plugins/analysis-ik/elasticsearch-analysis-ik-1.2.6.jar

curl: (35) error:14077458:SSL routines:SSL23_GET_SERVER_HELLO:reason(1112)

But works when forcing SSLv3:

curl -3 -o es-analysis-ik.jar -L https://github.com/medcl/elasticsearch-rtf/raw/master/plugins/analysis-ik/elasticsearch-analysis-ik-1.2.6.jar

Any idea how I can get this to install through the ES plugin binary? We had previously supported this plugin at Qbox.io, but I've had to remove it temporarily due to this issue.

[medcl]

curl -o es-analysis-ik.jar -L http://github.com/medcl/elasticsearch-rtf/raw/master/plugins/analysis-ik/elasticsearch-analysis-ik-1.2.6.jar

[FestivalBobcats]

Welllp, I feel stupid. Thanks for the help!

[FestivalBobcats]

Well, actually... still can't install it with the plugin installer.

Trying http://github.com/medcl/elasticsearch-rtf/raw/master/plugins/analysis-ik/elasticsearch-analysis-ik-1.2.6.jar...

Failed: SSLProtocolException[handshake alert:  unrecognized_name]