Zedrem fails to keep the connection alive after a while

[mfatihaktas]

First running zedrem on a remote site and generating the link for the zed client to remote edit.
It works smoothly for about half an hour, during this period zedrem repeats the link generation log as:
$ ./zedrem
In the Zed application copy and paste following URL to edit:

https://remote.zedapp.org:443/fs/...

Press Ctrl-c to quit.
In the Zed application copy and paste following URL to edit:

https://remote.zedapp.org:443/fs/...

Press Ctrl-c to quit.
In the Zed application copy and paste following URL to edit:

https://remote.zedapp.org:443/fs/...

Press Ctrl-c to quit.
In the Zed application copy and paste following URL to edit:

https://remote.zedapp.org:443/fs/...

Press Ctrl-c to quit.

Then zed client cannot save and have to close it and rerun zedrem and the client.
Note: This started to happen after I updated zedrem by downloading again 2 days ago because previous binary could not connect to the "zed server" anymore.