问题
for websockets I have to expose my sessionid from the cookie.
I have searched a bit and found that I should be able to access cookies by:
console.log(document.cookie);
unfortunatly this doesn't work or better document.cookie contains an empty string even chrome itself shows me the cookie also authentication works.
Can it be that chrome hides the cookie for javascript?
回答1:
That can happen if the server is configured to send the session cookie with the HttpOnly flag. This way the cookie becomes invisible/inaccessible to client side scripting languages like JS.
To achieve your concrete functional requirement, either reconfigure the server to not do so, or look for alternate means, e.g. setting a custom cookie (without the HttpOnly flag, of course), or letting the server side view technology dynamically print the current session ID as a JS variable or as an attribute of some HTML element so that JS can access it by traversing the HTML DOM.
来源：https://stackoverflow.com/questions/11924439/javascript-read-out-session-id-from-cookie