Self answer. Unfortunately author decided to remove all the files from Amazon S3 as described: https://groups.google.com/forum/#!topic/autobahnws/aHxWgImJvCY
Hi,
we (Crossbar.io GmbH) have not only provided massive development
funding of AutobahnJS, but also free hosting of AutobahnJS for
development purposes (download it and host it yourself).
We asked people NOT to hot link to this bucket MULTIPLE times, as we
have to pay for the traffic obviously.
Now, it seems, people don't get that.
Our traffic costs have persistently increased to a surprising level. I
just wanted to delete the log folder alone in that bucket - and I have
a hard time, the log files number in the 100k's!
There seem to be a number of highly frequented sites hot linking to
our bucket.
Now, instead of injecting some nice JavaScript to completely take over
all those sites (which is trivial and would take me half an hour to do!), we have decided to remove the whole bucket.
Dozens of sites will break. Not our problem.
Cheers, /Tobias
Newer source files can be still found on github (the one that implements wamp v2). Last version that implements wamp v1 (v.0.8.2 of autobahn-js) however can be found in this repo:
https://github.com/sergeyvolkov/autobahn-old
It can be hot swapped if you were using links from my question. Good source of other older versions is to digg through releases on GitHub page:
https://github.com/crossbario/autobahn-js/releases