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我想知道这是否是一个错误。我尝试了这个带有图像验证码的简单电子邮件表单。它一直在工作,直到我用 Mozilla firefox 对其进行了测试。图片无法显示,因为图片的 url 变成了 "\" 而不是 "/" 。有什么帮助吗?