Alert to crashed server

[janat08]

I believe when you get WebSocket connection to 'wss://localhost:8012/' failed: Error in connection establishment: net::ERR_CONNECTION_CLOSED server has crashed, in which case repainting window to something that indicates that would be quite helpful.

[janat08]

Don't know why this is happening, but it's happening out of blue. I start with SSL, and have braintree's drop-in ui package saved, but not imported. If it is imported I get error:

file:C:/Users/janat08/Dev/makpal/node_modules/braintree-web-drop-in/index.js:535
createFromScriptTag(create, typeof document !== 'undefined' && document.querySelector('script[data-braintree-dropin-authorization]')); ^ TypeError: document.querySelector is not a function
    at Object. (file:C:/Users/janat08/Dev/makpal/node_modules/braintree-web-drop-in/index.js:535:73)
    at file:C:/Users/janat08/Dev/makpal/node_modules/braintree-web-drop-in/index.js:546:4
    at file:C:/Users/janat08/Dev/makpal/node_modules/braintree-web-drop-in/index.js:546:98
    at ContextifyScript.Script.runInThisContext (vm.js:50:33)
    at Object.runInThisContext (vm.js:139:38)
    at doEval (C:\Users\janat08\Dev\makpal\node_modules\steal\main.js:4306:10)
    at __eval (C:\Users\janat08\Dev\makpal\node_modules\steal\main.js:4410:7)
    at Loader.exec [as __exec] (C:\Users\janat08\Dev\makpal\node_modules\steal\main.js:2427:5)
    at load.metadata.execute (C:\Users\janat08\Dev\makpal\node_modules\steal\main.js:3392:13)
    at linkDynamicModule (C:\Users\janat08\Dev\makpal\node_modules\steal\main.js:2764:32)

[janat08]

develop config:
"develop": "done-serve --develop --port 8080 --proxy http://localhost:8084 --key ../localhost-ssl/server.key --cert ../localhost-ssl/server.cert --proxy-no-cert-check",

[justinbmeyer]

I mentioned this here: donejs/donejs#318 (comment)

Regarding the document.querySelectorAll, you need to make sure that code does not run while SSR is running. SSR runs against a minimal DOM. Methods like document.querySelector are not supported.

This part of the bitballs guide shows you how to avoid running code during ssr: https://donejs.com/bitballs.html#turn-off-ssr

[janat08]

Maybe you could set up proxy for these methods to then send a good error.

[janat08]

What about disconnects?

[justinbmeyer]

cc @matthewp Yeah, we've been thinking about that. As it seems like we are going to support IE11, we can't use proxies. However, we can at least fill out some of the more common ones.

If you'd like to help, you can make that change here: https://github.com/canjs/can-simple-dom/blob/master/lib/simple-dom/document.js

I'd do something like:

function addMissingMethod(name){
  Document.prototype[name] = function(){
    console.warn("document."+name+"() is not implemented in can-simple-dom.  Please make sure this code runs after the document has finished loading."
    return {};
  }
}

addMissingMethod("querySelector");
addMissingMethod("querySelectorAll");

Alternatively, done-ssr makes it possible to load a different virtual DOM. You might be able to get JSDOM working. @matthewp would be able to point you in the right spot.

[janat08]

added all of document keys. so what are these disconnects about?

[janat08]

WebSocket connection to 'wss://localhost:8012/' failed: Error in connection establishment: net::ERR_CONNECTION_CLOSED

setup | @ | live-reload.js:296
-- | -- | --
  | tryCatchReject | @ | steal.js:1183
  | runContinuation1 | @ | steal.js:1142
  | Fulfilled.when | @ | steal.js:930
  | Pending.run | @ | steal.js:821
  | Scheduler._drain | @ | steal.js:97
  | Scheduler.drain | @ | steal.js:62
  | run | @ | steal.js:268

[janat08]

I believe the issue is with ssl