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Test for broken implementation of IndexedDB
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| <html> | |
| <body> | |
| <h1>Test for broken IndexedDB</h1> | |
| <p>This page tests the current browser's IndexexDB to see if it contains bugs.</p> | |
| <p>Possible bugs you might see: | |
| <ul> | |
| <li>IndexedDB not supported at all</li> | |
| <li>Samsung/HTC bug where IndexedDB doesn't have <code>onupgradeneeded</code></li> | |
| <li>Apple bug in UIWebView on iOS 8 where IDBKeyRange is null rather than undefined</li> | |
| <li>Apple bug in desktop Safari 7.1+ and iOS 8+ Safari where IndexedDB doesn't allow opening two databases at once and is basically unusable.</li> | |
| </ul> | |
| </p> | |
| <pre id="display"></pre> | |
| <script src="index.js"></script> | |
| </body> | |
| </html> |
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| (function () { | |
| 'use strict'; | |
| var display = document.getElementById('display'); | |
| function log(str) { | |
| display.innerHTML = (display.innerHTML || '') + '\n' + str; | |
| } | |
| if (typeof indexedDB === 'undefined') { | |
| log('This browser doesn\'t have IndexedDB.'); | |
| } else if (window.indexedDB === null) { | |
| log('This browser has the Apple UIWebView bug where indexedDB is null instead of undefined.'); | |
| } else if (typeof IDBKeyRange === 'undefined') { | |
| log('This browser has Samsung/HTC\'s broken version of IndexedDB (indexedDB is defined but not IDBKeyRange).') | |
| } else { | |
| testAppleBrokenIndexedDB(); | |
| } | |
| function testAppleBrokenIndexedDB() { | |
| var req = indexedDB.open('test', 1); | |
| req.onupgradeneeded = function (e) { | |
| var db = e.target.result; | |
| db.createObjectStore('one', { | |
| keyPath: 'key' | |
| }); | |
| db.createObjectStore('two', { | |
| keyPath: 'key' | |
| }); | |
| }; | |
| req.onerror = function () { | |
| }; | |
| req.onsuccess = function (e) { | |
| var db = e.target.result; | |
| var tx; | |
| try { | |
| tx = db.transaction(['one', 'two'], 'readwrite'); | |
| } catch (err) { | |
| log('This browser has Apple\'s broken implementation of IndexedDB (can\'t open two DBs at once).'); | |
| return; | |
| } | |
| tx.oncomplete = function (e) { | |
| db.close(); | |
| log('This browser has a working implementation of IndexedDB.') | |
| }; | |
| var req = tx.objectStore('two').put({ | |
| 'key': new Date().valueOf() | |
| }); | |
| req.onsuccess = function (e) { | |
| }; | |
| req.onerror = function () { | |
| }; | |
| }; | |
| } | |
| })(); |
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| DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE | |
| Version 2, December 2004 | |
| Copyright (C) 2004 Sam Hocevar <sam@hocevar.net> | |
| Everyone is permitted to copy and distribute verbatim or modified | |
| copies of this license document, and changing it is allowed as long | |
| as the name is changed. | |
| DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE | |
| TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION | |
| 0. You just DO WHAT THE FUCK YOU WANT TO. | |
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