Sam Steingold

``` $ linkchecker --version INFO 2017-10-29 11:36:54,620 MainThread Checking intern URLs only; use --check-extern to check extern URLs. LinkChecker 9.3 released 16.7.2014 Copyright (C) 2000-2014 Bastian Kleineidam $ uname -a...

Just to clarify: I do _not_ get this error reliably, and the process does finish, and does produce the desired output (list of broken links). Thanks!

# 1 `emacs -Q -f package-initialize --eval "(setq debug-on-error t)" --eval '(load "websocket")' --eval "(trace-function 'websocket-open)" -f ein:notebooklist-login` ``` ====================================================================== 1 -> (websocket-open "wss://data-science.k8s.region-001.p-use-1.braze.com:443/api/kernels/8ceaf574-4657-41d5-92be-6bbe80796629/channels?session_id=e2eb6bf9-2566-47b6-ba5a-10470dee7a00" :on-open #[128 #2="\302\300\303\301\"\"\207" [#[514 "\302
!>\204�\303\304\305D\"\210\211\306H\211\203e�\302
! >\204%�\303\304\307D\"\210\211\306H\211\203Q�\310
!\203?�\311\312\"\210\203?�
!\210\313\314\315\316\317\320\321...

# 2 `emacs -Q -f package-initialize --eval "(setq debug-on-error t)" --eval '(load "websocket")' --eval "(trace-function 'websocket-create-aders)" -f ein:notebooklist-login` ``` ====================================================================== 1 -> (websocket-create-headers "wss://data-science.k8s.region-001.p-use-1.braze.com:443/api/kernels/17a98983-0ab0-489a-80e9-8e5498fbb74d/channels?session_id=e21e701d-c904-4ddd-9e97-fb1e906c51eb" "RzHInp8N4aAm6DgI/S3YZw==" nil nil nil) 1

# 4 I _can_ connect to the jupyter server using chrome; here are the headers: 

> Thanks for the response. Thank *you*! > What is interesting is that you have cookies for this site already in emacs. Do you know where those come from? Yes,...

> Can you connect to the notebook in emacs with eww? Sort of... I can "get in" using `https://data-science.k8s.region-001.p-use-1.braze.com/tree/?token=XXXXX` but the page does not show the actual list of notebooks...

> If this is an internal server for your organization, is there any chance you can ask what authentication they are expecting? this is the standard jupyter server: ``` jupyter...

> There's a few things here that could be interesting - what you can try to do is to add some of these headers to the `websocket-open` call in ein...

> Also, have you seen [jupyter/notebook#3389](https://github.com/jupyter/notebook/issues/3389)? It seems very similar to your issue. could be - my jupyter works with chrome & firefox but not with `ein`.