我有一个输入框:
<input type="password" name="password" id="password" autocomplete="on" required="" class="ui-state-valid">
当页面最初加载并自动完成命中时，$("#password").val() 返回一个“”。即使自动完成插入了值。
这会导致自定义占位符出现问题。
我需要知道为什么该值为空。我在页面中还有其他输入字段，可以很好地使用自动完成功能。
最佳答案
As of Internet Explorer11, the autocomplete property is no longer supported for input type=password fields.
The AutoComplete feature is highlighted in the Using AutoComplete in HTML Forms overview.
When AutoComplete is enabled, suggestions are provided for the value of a text field. Suggested values are mapped values based on the name attribute or vCard schema specified by the vcard_name attribute.
If AutoComplete is disabled, values are not stored and suggested values are not presented.
Values in input type=password elements can be mapped for AutoComplete; however, the ability to store this information can be disabled in the browser, and the user is prompted for a confirmation before the value is stored.
Information provided by the AutoComplete feature is not exposed to the object model, and is not visible to a Web page until the user selects one of the suggestions as a value for the text field.
引用:- here
关于javascript - 启用自动完成的输入类型密码。 val() 变成空白，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/25301348/