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'; document.body.appendChild(div); document.getElementById('lex-cr-reload').onclick = function() { window.location.reload(); }; document.getElementById('lex-cr-clear').onclick = function() { try { // Nuke service workers if ('serviceWorker' in navigator) { navigator.serviceWorker.getRegistrations().then(function(regs) { regs.forEach(function(r) { r.unregister(); }); }); } // Nuke all caches if ('caches' in window) { caches.keys().then(function(names) { names.forEach(function(n) { caches.delete(n); }); }); } // Clear localStorage except auth var authBackup = localStorage.getItem('sb-lex-auth-token-backup'); var keys = []; for (var i = 0; i < localStorage.length; i++) keys.push(localStorage.key(i)); keys.forEach(function(k) { if (k && !k.startsWith('sb-') && k !== 'sb-lex-auth-token-backup') { localStorage.removeItem(k); } }); // Clear sessionStorage sessionStorage.clear(); } catch(e) {} setTimeout(function() { window.location.href = '/'; }, 200); }; } })();

A list of books on the history and art of printing and some related subjects in the Public Library of the city of Boston and the libraries of Harvard College and the Boston Athenaeum