WKWebView设置localStorage
NSString * userContent = @"{\"name\": \"Tom\", \"age\": 10}"];
// 设置localStorage
NSString *jsString = [NSString stringWithFormat:@"localStorage.setItem('userContent', '%@')", userContent];
// 移除localStorage
// NSString *jsString = @"localStorage.removeItem('userContent')";
// 获取localStorage
// NSString *jsString = @"localStorage.getItem('userContent')";
[self.webView stringByEvaluatingJavaScriptFromString:jsString];
//清理掉所有的localStorage数据
//NSString *clearString = @"localStorage.clear()";