Hey guys, I am implementing CSP for Workers in Firefox, but like to get a clarification on workers and the sandbox flag. Currently, a Worker can inherit or be accompanied by a CSP header. As written, the implications of the sandbox directive on the Worker context is not clear.
[Following up on https://github.com/w3c/webappsec/issues/69] Arguably most of the sandbox flags don't make sense for Workers, but the empty directive (i.e., just sandbox) and sandbox allow-same-origin can have reasonable semantics. So, if a Worker inherits the CSP from the owner document (or parent worker in later specs) or is accompanied by a CSP header which has the 'sandbox' directive, should the worker script's origin be set to a unique origin? Or should we just ignore (and appropriately warn about) the sandbox flag for Workers and address the need for sandboxed Workers separately? Thanks, Deian
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