Invalid response: 401 Unauthorized Ser Connection Error

[cg1008syf]

Hi,

We are running JupyterLab from within Anaconda Enterprise, and on the order of every hour, we are getting a server connectiion error. The error is resolved upon reloading the web page. We don't see this error in jupyter notebook, running in AE. We have looked at token settings (given the 'unauthorized' component of the error), and have expanded the token lifespan to be much longer than 1 hr. Furthermore, we are not asked to login ... just refreshing the web browser... Any feedback on what is happening to resolve this issue will be appreciated...

Thank you

[jasongrout]

Great question. It sounds like this might be a good question for Anaconda Enterprise support. I would suggest asking them.

[cg1008syf]

hi Jason,

Thank you reaching back. We have not been as successful in resolving this issue, even with AE support. Hence, my attempt to reach out to jupyterlab directly to see if this issue has been addressed before. I came across a post few months ago, which was closed due to not having more input from the poster (#4578).

Thank you

[jasongrout]

I don't remember seeing or hearing about it, other than the issue you linked. I don't use AE either. But we'll leave this open to see if anyone else has experience to add.

[cg1008syf]

wanted to provide more details...

function handleRequest(url, init, settings) {
    // Handle notebook server requests.
    if (url.indexOf(settings.baseUrl) !== 0) {
        throw new Error('Can only be used for notebook server requests');
    }
    // Use explicit cache buster when `no-store` is set since
    // not all browsers use it properly.
    var cache = init.cache || settings.init.cache;
    if (cache === 'no-store') {
        // https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/Using_XMLHttpRequest#Bypassing_the_cache
        url += ((/\?/).test(url) ? '&' : '?') + (new Date()).getTime();
    }
    var request = new settings.Request(url, __assign({}, settings.init, init));
    // Handle authentication.
    var authenticated = false;
    if (settings.token) {
        authenticated = true;
        request.headers.append('Authorization', "token " + settings.token);
    }
    else if (typeof document !== 'undefined' && document.cookie) {
        var xsrfToken = getCookie('_xsrf');
        if (xsrfToken !== void 0) {
            authenticated = true;
            request.headers.append('X-XSRFToken', xsrfToken);
        }
    }
    // Set the content type if there is no given data and we are
    // using an authenticated connection.
    if (!request.bodyUsed && authenticated) {
        request.headers.set('Content-Type', 'application/json');
    }
    // Use `call` to avoid a `TypeError` in the browser.
    return settings.fetch.call(null, request).catch(function (e) {
        // Convert the TypeError into a more specific error.
        throw new ServerConnection.NetworkError(e);
    });
}

The above function is where the error points to...

[cg1008syf]

came across this... very similar to what we are experiencing...

https://github.com/DataBiosphere/saturn-ui/issues/1116