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(function () { |
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// Has the user previously consented, establish our |
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// initial state |
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let selected = []; |
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let existingConsent = ""; |
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// The presence of a 'cookieConsent' local storage item indicates |
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// that previous consent has been set. If the value is empty, then |
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// no consent to non-essential cookies was given |
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const hasStoredConsent = localStorage.getItem("cookieConsent"); |
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getExistingConsent(); |
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|
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// The consent bar may not be in the DOM if it is not being used |
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const consentBar = $("#cookieConsentBar"); |
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if (!consentBar) { |
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return; |
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} |
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|
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// Initialize the consent modal and prevent the modal |
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// from being closed with anything but the buttons |
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const cookieConsentModal = new bootstrap.Modal( |
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document.getElementById("cookieConsentModal"), |
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{ |
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backdrop: "static", |
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keyboard: false, |
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focus: true, |
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show: true, |
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} |
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); |
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|
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if (hasStoredConsent === null) { |
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showConsentBar(); |
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} |
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addButtonHandlers(); |
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|
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// When the modal is opened, populate our state based on currently |
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// selected values |
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const cookieConsentModalEl = document.getElementById("cookieConsentModal"); |
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cookieConsentModalEl.addEventListener("shown.bs.modal", () => { |
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initialiseSelected(); |
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}); |
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|
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// Initialise existing consent based on local storage |
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function getExistingConsent() { |
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existingConsent = localStorage.getItem("cookieConsent") |
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? localStorage.getItem("cookieConsent") |
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: []; |
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} |
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|
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function showConsentBar() { |
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const consentBar = $("#cookieConsentBar"); |
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const langmenu = $("#changelanguage"); |
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if (langmenu) { |
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const height = langmenu.height(); |
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consentBar.css("bottom", height); |
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} |
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consentBar.attr("aria-hidden", "false"); |
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consentBar.css("display", "flex"); |
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} |
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|
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function hideConsentBar() { |
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const consentBar = $("#cookieConsentBar"); |
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consentBar.attr("aria-hidden", "true"); |
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consentBar.hide(); |
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} |
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|
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// Hides the appropriate consent container, depending on what |
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// is currently visible |
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function hideContainer() { |
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if ($(cookieConsentModalEl).is(":visible")) { |
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cookieConsentModal.hide(); |
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} else { |
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hideConsentBar(); |
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} |
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} |
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|
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// Initialise our state of selected item and enable/disable |
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// the "Accept selected" button appropriately |
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function initialiseSelected() { |
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selected = []; |
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$(".consentCheckbox").each(function () { |
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const val = $(this).val(); |
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if (existingConsent.indexOf(val) > -1) { |
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$(this).prop("checked", true); |
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selected.push(val); |
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} else { |
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$(this).prop("checked", false); |
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} |
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}); |
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enableDisableSelectedButton(); |
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} |
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|
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// Maintain our state of selected items and enable/disable |
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// the "Accept selected" button appropriately |
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function maintainSelected() { |
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selected = []; |
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$(".consentCheckbox:checked").each(function () { |
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selected.push($(this).val()); |
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}); |
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enableDisableSelectedButton(); |
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} |
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|
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// Set the enabled / disabled state of the |
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// "Accept selected button based on the checkbox |
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// states |
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function enableDisableSelectedButton() { |
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$("#consentAcceptSelected").prop("disabled", selected.length === 0); |
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} |
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|
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function runConsentedCode() { |
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getExistingConsent(); |
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$(".consentCode").each(function () { |
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// The user has explicitly consented to this code, or the |
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// code doesn't require consent in the staff view |
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if ( |
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existingConsent.indexOf($(this).data("consent-id")) > -1 || |
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!$(this).data("requires-consent") |
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) { |
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const code = atob($(this).data("consent-code")); |
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const func = Function(code); |
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func(); |
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} else { |
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// This code doesn't have consent to run, we may need to remove |
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// any cookies it has previously set |
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const matchPattern = $(this).data("consent-match-pattern"); |
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const cookieDomain = $(this).data("consent-cookie-domain"); |
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const cookiePath = $(this).data("consent-cookie-path"); |
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if (matchPattern.length > 0) { |
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const regex = new RegExp(matchPattern); |
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const allCookies = document.cookie.split("; "); |
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allCookies.forEach(function (cookie) { |
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const name = cookie.split("=")[0]; |
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if (regex.test(name)) { |
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document.cookie = |
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name + |
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"=; expires=Thu, 01 Jan 1970 00:00:01 GMT; domain=" + |
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cookieDomain + |
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"; path=" + |
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cookiePath; |
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} |
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}); |
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} |
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} |
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}); |
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} |
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|
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function addButtonHandlers() { |
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// "Accept all" handler |
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$(".consentAcceptAll").on("click", function (e) { |
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e.preventDefault(); |
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let toSave = []; |
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$(".consentCheckbox").each(function () { |
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const val = $(this).val(); |
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toSave.push(val); |
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}); |
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localStorage.setItem("cookieConsent", toSave); |
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hideContainer(); |
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runConsentedCode(); |
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}); |
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|
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// "Accept essential" handler |
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$(".consentAcceptEssential").on("click", function (e) { |
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e.preventDefault(); |
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localStorage.setItem("cookieConsent", []); |
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hideContainer(); |
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runConsentedCode(); |
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}); |
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|
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// "Accept selected" handler |
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$("#consentAcceptSelected").on("click", function (e) { |
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e.preventDefault(); |
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const toSave = selected.length > 0 ? selected : []; |
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localStorage.setItem("cookieConsent", toSave); |
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hideContainer(); |
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runConsentedCode(); |
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}); |
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|
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// "Cancel" handler |
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$(".consentCloseModal").on("click", function (e) { |
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e.preventDefault(); |
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hideContainer(); |
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showConsentBar(); |
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}); |
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|
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// "More information" handler |
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$("#consentMoreInfo, #viewCookieConsents").on("click", function (e) { |
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e.preventDefault(); |
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hideConsentBar(); |
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// Ensure we're up to date with the existing consent |
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getExistingConsent(); |
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cookieConsentModal.show(); |
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}); |
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$(".consentCheckbox").on("click", function () { |
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maintainSelected(); |
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}); |
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} |
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|
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// On page load, run any code that has been given consent |
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runConsentedCode(); |
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})(); |