Great question, and thanks for pointing it out. I've updated the README.md
to be more clear.
The answer is empty string (").
And as far as what it shows instead, it's either homepage or restore your
session depending on what you have set.
These policies prevent these pages from being shown, so the browser would
act as if it were a normal startup.
Mike
On Sat, Nov 7, 2020 at 1:39 PM Andrew J. Buehler <[email protected]>
wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA512
>
> As of this writing, the entries for OverrideFirstRunPage and
> OverridePostUpdatePage in
> https://github.com/mozilla/policy-templates/blob/master/README.md refer
> to the possibility of setting a policy to a blank value, with a
> different effect from setting it to a defined value.
>
> For example, OverrideFirstRunPage says that "If the value is blank, no
> first run page is displayed.".
>
> However, no example of how to set this to a blank value is given. For
> some of the policy provisioning methods listed, how to set the value to
> blank is relatively clear from the general ways to set values in that
> method in the first place, but for others it is not. In particular, for
> the policies.json case, I'm not clear whether the correct way to set a
> blank value would be
>
> "OverrideFirstRunPage": "",
> "OverrideFirstRunPage": {},
> "OverrideFirstRunPage": '""',
> "OverrideFirstRunPage": ,
>
> or something else. (There are quite a few examples given in various
> question-and-answer places online for how to set an empty or blank or
> NULL value in JSON, some but not all of which are in the above list, and
> none of them seem obviously the right choice to use here.)
>
> Rather than flail around testing things at random till I find the
> correct syntax, I thought I'd ask: what is the proper way to specify
> blank values in policies.json?
>
>
> Additionally, as a tangential point, these entries do not explain what
> *is* done instead of displaying the first-run or post-update page if the
> value is blank.
>
> It seems intuitive that if a URL is specified for either of these, that
> page will be displayed at the relevant time instead of the built-in
> default. If the value is blank, I can guess that maybe it will display
> the defined home page instead, or the new-tab page, or about:blank, or
> (for upgrade) the last set of open tabs - or maybe that the page in
> question is always shown in a separate tab, in addition to whatever
> other tabs may appear, and that that extra tab will simply not be
> opened. However, nothing here tells me which one (if indeed it's any of
> those), so I can't decide what value to set this to without testing that
> behavior.
>
> A brief indication of what the behavior here will be - e.g., if it's the
> "separate tab" alternative, something like "If the value is blank, no
> first-run-page tab will be opened." - would be helpful to the
> uninitiated reader.
>
> - --
> Andrew J. Buehler
> -----BEGIN PGP SIGNATURE-----
>
> iQJJBAEBCgAzFiEEJCOqsZEc2qVC44pUBKk1jTQoMmsFAl+m99oVHHdhbmRlcmVy
> QGZhc3RtYWlsLmZtAAoJEASpNY00KDJrnBsP/AjhcpbvKoZR1Fh03G2/seU+jDVh
> Rrduf04UqJA494S0un472zvNXfVbff+hQTjtqrXjcPgqfDd3gdf0uy5JMyrVEFyJ
> ggpZ5Twr/urY8pPgfO73pF0ufaKrKOGn5sl3fAtkUJa7BR4z7tcfCM3f4JRSZj4C
> BLR2eADEWo+mh6+mSg81bzXYWolFwaDPC28Q8e18wypOWIOW78fyXyx94Ce66bX7
> i1LcMincMxS/Hfea/OnY8w0qR3MTV/HUzhRo7W/nLymSj1f7Q8wxA9eVSCNERoBJ
> i7wUEqxrHCWWtnhVapBw2RBIRe6CuSYlwxGm+QjsTrnP+uNq/djUzRsSQRypmTA6
> GrTc9kCBdqDOB1CC+dsCKA5sJo3S1uw04mTinrwqugSjP5RospCpECQrx5AUPADk
> P8EJZyDdEwCuSm4t9wxoEIjP19bWcpihtUl7C+IYgebeFsLli7aaGabuVa+OfyG2
> flodgU/mqeAUi1nCab0XKzFkb6X/OTUH1NvDIhwqyqF64OGtvz4/rwHXbdztrIvQ
> FQ8E1TYMNJJoXnD8v1Q55ygU3IYFJazqrh2ra/wDRDkzhVGS42IEejZmYwWfSw5o
> okLNli8YFolmiP1VrQdHd9O+yapYd5XghoYa1iu1MRfAi7tkVhu3M92XkCt2/RK/
> WuGlniGOmf2OA2HJ
> =8Ruf
> -----END PGP SIGNATURE-----
> _______________________________________________
> Enterprise mailing list
> [email protected]
> https://mail.mozilla.org/listinfo/enterprise
>
> To unsubscribe from this list, please visit
> https://mail.mozilla.org/listinfo/enterprise or send an email to
> [email protected] with a subject of "unsubscribe"
>
_______________________________________________
Enterprise mailing list
[email protected]
https://mail.mozilla.org/listinfo/enterprise
To unsubscribe from this list, please visit
https://mail.mozilla.org/listinfo/enterprise or send an email to
[email protected] with a subject of "unsubscribe"
