A security issue has been found in Firefox < 55.0. When an iframe has a sandbox attribute and its content is specified using srcdoc, that content does not inherit the containing page's Content Security Policy (CSP) as it should unless the sandbox attribute included allow-same-origin.
A security issue has been found in Firefox < 55.0. When an iframe has a sandbox attribute and its content is specified using srcdoc, that content does not inherit the containing page's Content Security Policy (CSP) as it should unless the sandbox attribute included allow-same-origin.
https://www.mozilla.org/en-US/security/advisories/mfsa2017-18/#CVE-2017-7788 https://bugzilla.mozilla.org/show_bug.cgi?id=1073952
Vulmon