Detect if page was redirected or loaded directly(Javascript)

问题

Currently, I want to display a label on the first page of my site a user visits.

To make it simple, say I only care about page1.html and page2.html.

Is it possible to check if the user was redirected from page1.html to page2.html?(Perhaps with cookies?)

Edit: On page1.html, I set a cookie, which would expire in a minute. On page2.html, I checked for the cookie. Works great!

回答1:

You can use document.referrer.

The value is an empty string if the user navigated to the page directly (not through a link).

1. For example when user come to URL via bookmaked links click.
2. User type the full URL in address bar.

Reference https://developer.mozilla.org/en-US/docs/Web/API/Document/referrer

来源：https://stackoverflow.com/questions/36522178/detect-if-page-was-redirected-or-loaded-directlyjavascript