encoding/json: revert Compact HTML escaping documentation
This partly reverts CL 173417 as it incorrectly documented that Compact performed HTML escaping and the output was safe to embed inside HTML <script> tags. This has never been true. Although Compact does escape U+2028 and U+2029, it doesn't escape <, > or &. Compact is thus only performing a subset of HTML escaping and it's output is not safe to embed inside HTML <script> tags. A more complete fix would be for Compact to either never perform any HTML escaping, as it was prior to CL 10883045, or to actually perform the same HTML escaping as HTMLEscape. Neither change is likely safe enough for go1.13. Updates #30357 Change-Id: I912f0fe9611097d988048b28228c4a5b985080ba GitHub-Last-Rev: aebababc9233c5705785b225377e80096d4bb8c4 GitHub-Pull-Request: golang/go#33427 Reviewed-on: https://go-review.googlesource.com/c/go/+/188717Reviewed-by: Daniel Martí <mvdan@mvdan.cc> Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org>
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