<hat="individual">
I tend to agree with Jeff and Andy's comments.

The real use case / need for "report-only" is not fully clear to me.
Yes, it could always be nice to have one more test-case to run before going life with a system, but IMHO I am having a hard time seeing where this flag would really add value. And we should not add features (and complexity) as for "report-only" to an I-D just for the sake of it and because they might one day be possibly help for an unclear or theoretical use-case.

Just my 5cents.

Best regards, Tobias


On 29/06/12 21:56, =JeffH wrote:

> Existence of "I am testing HSTS" directive would
> allow browsers to present debug information on HSTS succeeding/failing
> in some form (browser logs, additional debug frame, etc.)


This "report-only"/"testing" mode notion came up in WG discussion in Paris, inspired in part on the "report-only" functionality in the Content Security Policy spec.

The way CSP handles signaling "report-only" is via a separate header field ("Content-Security-Policy-Report-Only"), rather than as a directive.

Given that HSTS as presently specified is implemented in several browsers (Chrome, Firefox, Opera12beta), and deployed by a number of sites, we suggest finishing up the HSTS spec as is.

Then, if there's interest and energy to define a "report-only"/"testing" mode, a fairly simple follow-on spec could be written leveraging the original HSTS spec and defining just what's needed for this.


=JeffH

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