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Ignore session cookies #2420

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Ignore session cookies #2420

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3 changes: 2 additions & 1 deletion src/js/heuristicblocking.js
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Original file line number Diff line number Diff line change
Expand Up @@ -642,7 +642,8 @@ function hasCookieTracking(details, origin) {
let cookie = utils.parseCookie(cookies[i], {
noDecode: true,
skipAttributes: true,
skipNonValues: true
skipNonValues: true,
ignoreSessionCookies: true,
});

// loop over every name/value pair in every cookie
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14 changes: 11 additions & 3 deletions src/js/utils.js
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Original file line number Diff line number Diff line change
Expand Up @@ -328,7 +328,8 @@ function parseCookie(str, opts) {
];

let parsed = {},
cookies = str.replace(/\n/g, ";").split(";");
cookies = str.replace(/\n/g, ";").split(";"),
is_session_cookie = true;

for (let i = 0; i < cookies.length; i++) {
let cookie = cookies[i],
Expand All @@ -355,8 +356,11 @@ function parseCookie(str, opts) {
value = "";
}

if (opts.skipAttributes &&
COOKIE_ATTRIBUTES.indexOf(name.toLowerCase()) != -1) {
let lname = name.toLowerCase();
if (opts.ignoreSessionCookies && (lname == "expires" || lname == "max-age")) {
is_session_cookie = false;
}
if (opts.skipAttributes && COOKIE_ATTRIBUTES.includes(lname)) {
continue;
}

Expand Down Expand Up @@ -387,6 +391,10 @@ function parseCookie(str, opts) {
}
}

if (opts.ignoreSessionCookies && is_session_cookie) {
return {};
}

return parsed;
}

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