iOS 8是否支持带UIWebView的IndexedDB？

我看到iOS 8上的Safari支持

IndexedDB

，但我找不到有关

UIWebView

的任何信息。从我的初步测试来看，似乎没有，但我希望有人能给我一个具体的答案。

从这里：

---

◾IndexedDB在iOS 8“UIWebView”或主屏幕应用程序中不可用

UIWebView

不支持

IndexedDB

，但

WKWebView

支持

以下是在iOS8上提供的各种web查看器上测试的技术：

iPod Touch iOS 8 *Safari*
UserAgent - Mozilla/5.0 (iPod touch; CPU iPhone OS 8_0 like Mac OS X)
AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12A365
Safari/600.1.4
Sunspider - 1825ms Overall
HMTL5 Test - 440/555
- Seamless iFrame - No
- 2D Graphics Path Support - Yes
- Web GL 3D Graphics - Yes
- IndexedDB - Yes
- Objectstore ArrayBuffer Support - Yes

iPod Touch iOS 8 *HomeScreen*
UserAgent - Mozilla/5.0 (iPod touch; CPU iPhone OS 8_0 like Mac OS X)
AppleWebKit/600.1.4 (KHTML, like Gecko) Mobile/12A365
SunSpider - 1801.0ms Overall
HTML5 Test - 427/555
- Seamless iFrame - No
- 2D Graphics Path Support - Yes
- Web GL 3D Graphics - Yes
- IndexedDB - No
- Objectstore ArrayBuffer Support - No


iPod Touch iOS 8 *WKWebView*
UserAgent - Mozilla/5.0 (iPod touch; CPU iPhone OS 8_0 like Mac OS X)
AppleWebKit/600.1.4 (KHTML, like Gecko) Mobile/12A365
SunSpider - 1822.8ms Overall
HTML5 Test - 438/555
- Seamless iFrame - No
- 2D Graphics Path Support - Yes
- Web GL 3D Graphics - Yes
- IndexedDB - Yes
- Objectstore ArrayBuffer Support - No


iPod Touch iOS 8 *UIWebView*
UserAgent - Mozilla/5.0 (iPod touch; CPU iPhone OS 8_0 like Mac OS X)
AppleWebKit/600.1.4 (KHTML, like Gecko) Mobile/12A365
SunSpider - 7114.6ms Overall
HTML5 Test - 427/555
- Seamless iFrame - No
- 2D Graphics Path Support - Yes
- Web GL 3D Graphics - Yes
- IndexedDB - No
- Objectstore ArrayBuffer Support - No


*iOS 8 Notes*
- Seamless iFrame was removed compared to iOS 7.1.2
- IndexedDB is only supported in Safari & WKWebView App
- Objectstore ArrayBuffer is only supported in Safari & WKWebView App
- UIWebView is ~4x slower then WKWebView for JS (Sunspider results)
- WKWebView cannot load local files (issue for Cordova/Phonegap/Offline
Solutions)
- No UserAgent difference between UIWebView and WKWebView.