4.4 Useful URL variables

URL retrieves the pages and takes care of cookies, history of visited urls, and caching.

Set ‘url-automatic-caching’ to t to enable caching. The cached files will be saved in ‘url-cache-directory’.

Set ‘url-history-track’ to non-nil to keep track of all URLs visited in the current Emacs session, set it to t to save the hash table of URLs at the end of each Emacs session.

‘url-privacy-level’ is the main URL variable for request privacy. Its default is '(email) to keep your email address private. If you allow Referers, see ‘url-lastloc-privacy-level’. Call the function ‘url-setup-privacy-info’ after modifying privacy variables.

Set a list of regular expressions of URLs to allow and disallow cookies from in ‘url-cookie-trusted-urls’ and ‘url-cookie-untrusted-urls’, respectively. If you want to ignore all cookies other than those from the hosts/URLs you trust, it’s best to set ‘url-cookie-untrusted-urls’ to '("https?://"). If you want no cookies at all, use '(".*"). This has to do with how url determines cookie URL matches. Set ‘url-cookie-confirmation’ to t if you want to confirm setting new cookies.

You can set the ‘url-debug’ variable to the types of messages to log. You might want to set this temporarily:

(setq url-debug '(http retrieval))