尖括号在数据URI中是否有效? [英] Are angle brackets valid in data URIs?

问题描述

我一直在阅读数据URI ，其中包含有效数据URI的以下示例:

I've been reading about Data URIs which has the following example of a valid data URI:

data:text/html,<script>alert('hi');</script>

但是通读 RFC 2397 我发现了以下内容:

However reading through RFC 2397 I have found the following:

dataurl    := "data:" [ mediatype ] [ ";base64" ] "," data
mediatype  := [ type "/" subtype ] *( ";" parameter )
data       := *urlchar
parameter  := attribute "=" value

其中"urlchar"是从 RFC2396

据我了解，urlchar应该是部分中的内容RFC2396的2.4.3 ，其中记录了已排除的US-ASCII字符列表，并特别指出:

From what I understood is that urlchar should be what is in Section 2.4.3 of RFC2396, where it notes the list of US-ASCII characters that have been excluded and specifically says:

尖括号<"和>"和双引号()字符是 排除，因为它们通常用作URI中的定界符 文本文档和协议字段.

The angle-bracket "<" and ">" and double-quote (") characters are excluded because they are often used as the delimiters around URI in text documents and protocol fields.

所以我的问题是，数据URL中是否允许使用尖括号?是我误解了RFC还是 MDN 中的示例>错了吗?

So my question is, are angle brackets allowed in Data URLs? Am I misinterpreting the RFC or is the example at MDN wrong?

推荐答案

该示例确实是错误的(因为Data URI无效，尽管它可能起作用").

The example is indeed wrong (in that the Data URI is invalid, although it might "work").

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