我有一个包含 gwt 引导文本框、密码文本框和提交按钮的登录页面
<g:VerticalPanel height="400px" width="50%">
                <b:WellForm  height="400px" ui:field="loginPanel">
                    <g:VerticalPanel horizontalAlignment="ALIGN_CENTER"
                        width="100%">
                        <b:FormLabel ui:field="emailErrorLabel" visible="false">
                            <font color="red">
                                <i> Please enter your login name</i>
                            </font>
                        </b:FormLabel>
                        <b:TextBox  alternateSize="LARGE" b:id="Email"
                            ui:field="Email" placeholder="E-mail"  width="335px"
                            height="30px" />
                    </g:VerticalPanel>
                    <g:VerticalPanel horizontalAlignment="ALIGN_CENTER" width="100%">
                        <b:FormLabel ui:field="passwordErrorLabel" visible="false">
                            <font color="red">
                                <i>  Please enter password</i>
                            </font>
                        </b:FormLabel>
                        <b:PasswordTextBox  width="335px"
                            alternateSize="LARGE" ui:field="password" placeholder="Password"
                            height="30px" />
                    </g:VerticalPanel>
                    <b:Button type="PRIMARY" ui:field="loginButton" icon="SIGNIN">Login</b:Button></b:Wellform>
我设置以下属性
loginPanel.setMethod("POST");
    loginPanel.getElement().setPropertyString("autocomplete", "on");
    Email.getElement().setAttribute("type", "text");
    password.getElement().setAttribute("type", "password");
并且在单击登录时,我正在调用一个进行登录的 rpc。我缺少什么属性。如何让浏览器提示保存密码选项。