nassh: fix relay loop detection

The assumption was that session storage was scoped to a tab and thus
would not persist across connections (as that's what the comments in
our code around promptOnReload implies).  That's not the case -- the
active session storage is used to seed things when a new window is
opened via Ctrl+Shift+N.  That means the loop counter is not cleared
when we try to create another connection, or when we reconnect, and
ends up triggering a false loop error if you run a bunch of windows.

Clear the relay loop count at two locations where things should be
sane: when we display the connection dialog, and when we finish the
relay redirection.

Change-Id: Ia2822f3c02bfc13b9aabef4bab537c18aeabb473
Reviewed-by: Brandon Gilmore <>
Tested-by: Mike Frysinger <>
2 files changed
tree: 089038927871e1a3d718f9a3047c46a5dcec32f7
  1. .gitignore
  5. hterm/
  6. libdot/
  7. nassh/
  8. package.json
  9. saltpig/
  10. ssh_client/
  11. wam/
  12. wash/


This repository contains the libdot JavaScript library and some web applications that make use of it.

The official copy of this repository is hosted at

There is also a mirror on github at Keep in mind that this mirror may occasionally be behind the official repository.

All changes must go through the Gerrit code review server on Github pull requests cannot be accepted. Please see the document in this directory for the details.

Top level directories

  • libdot/ is a small set of JS libraries initially developed as part of hterm, now available as shared code. It provides a base layer for web applications. The code is intended to work in any modern browser, in either a plain web page or a “privileged” environment such as a Chrome platform application or Firefox extension. In practice, it's only been put to use in Chrome platform applications so far.

  • hterm/ is a JS library that provides a terminal emulator. It is reasonably fast, reasonably correct, and reasonably portable across browsers.

  • nassh/ is the Secure Shell Chrome App (currently a “v1.5” app, soon to become a “v2” or platform app) that combines hterm with a NaCl build of OpenSSH to provide a PuTTY-like app for Chrome users.

  • ssh_client/ is the NaCl port of OpenSSH. It is used by nassh to create the Secure Shell App.

  • wash/ is a library for cross-origin virtual filesystems, similar to the Plan 9 filesystem. This directory also contains a simple bash-like shell environment for exploring these filesystems. The code in this directory is a work-in-progress.