无题.小知识点

[anjia]

目录

[anjia]

Data URLs

data urls ???????????? documents ?????? files

• URLs ??? scheme data: ?????????
• ?????? content creators???????????????????????? documents ????????? small files inline?????????????????????

????????????????????????data:[<mediatype>][;base64],data

1. data: ??????
2. MIME type???????????? text/plain;charset=US-ASCII
3. base64
   • ??????????????? textual?????????????????????????????????????????????
   • ??????????????? non-textual??????????????????base64???????????? base64-encoded ??????????????????
4. data

eg.

• data:,Hello%2C%20World!
• data:text/plain;base64,SGVsbG8sIFdvcmxkIQ%3D%3D
• data:text/html,%3Ch1%3EHello%2C%20World!%3C%2Fh1%3E
• data:text/html,<script>alert('hi');</script>

the "data" URL scheme