WKWebView 文字自适应内容大小禁止缩放

[禁止缩放meta标签]

主要控制在在meta标签那里

NSString *htmls = [NSString stringWithFormat:@" \n"
                               " \n"
                                "\n"
                               " \n"
                               " \n"
                               ""
                               "%@\n"
                               "\n"
                               "",self.FWBStr];

    [_myWebView loadHTMLString:htmls baseURL:nil];