iOS WKWebView加载HTML字体大小问题

NSString *jScript = @"var meta = document.createElement('meta'); meta.setAttribute('name', 'viewport'); meta.setAttribute('content', 'width=device-width'); document.getElementsByTagName('head')[0].appendChild(meta);";

    

    WKUserScript *wkUScript = [[WKUserScript alloc] initWithSource:jScript injectionTime:WKUserScriptInjectionTimeAtDocumentEnd forMainFrameOnly:YES];

    WKUserContentController *wkUController = [[WKUserContentController alloc] init];

    [wkUController addUserScript:wkUScript];

    

    WKWebViewConfiguration *wkWebConfig = [[WKWebViewConfiguration alloc] init];

    wkWebConfig.userContentController = wkUController;

    

    // 创建设置对象

    WKPreferences *preference = [[WKPreferences alloc]init];

    // 设置字体大小(最小的字体大小)

    preference.minimumFontSize = 15;

    // 设置偏好设置对象

    wkWebConfig.preferences = preference;

    WKWebView *webView = [[WKWebVi

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