估计可以植入一段 CSS,用设计好的 0 宽度字符 webfont 替换掉这些符号的常用字体中的对应字符实现无 JS 无 JS 损害过滤。
具体方法如下:
@
font-face {
font-family: "Custom";
font-style: normal;
src: url(Custom.woff) format('woff');
}
@
font-face {
font-family: "Custom";
font-style: bolder;
src: url(Custom.woff) format('woff');
}
@
font-face{
font-style: normal;
font-family: "SimSun";
src: local("Custom");
unicode-range: U+2600-27BF, U+2E80-9FFF, U+F900-FAFF, U+FE30-FE4F, U+20000-2FA1F;
}