HTML在之前解析并独立于Javascript。当前的浏览器行为是，一旦找到打开的标签< script> ，浏览器将切换到脚本数据状态并将所有后续数据解释为脚本，直到找到< / script> 。

HTML is parsed before and independent from Javascript. The current browser behavior is that, once an open tag <script> is found, the browser will switch to "Script Data State" and interpret all following data as script until a </script> is found.

< / script> 无关紧要 - 在JS字符串，JS注释，CDATA部分甚至HTML注释中。

Where the </script> is detected doesn't matter — inside a JS string, a JS comment, a CDATA section, or even HTML comment.

你需要制作字符串看起来不像< / script> 到HTML解析器。最简单的方法是写 https://***.com/questions/3509818/why-script-tag -in-js-string-is-being-validated / 3509843＃3509843> @ Daniel 的回答。

You need to make the string does not look like </script> to the HTML parser. The simplest way is to write <\/script> as in @Daniel's answer.