1524772 - Webcompat: Offline unavailable in Gmail

Status: ASSIGNED

(Web Compatibility :: Site Reports, defect, P1)

Description

[Teng-pao Yu [:tyu]]

Gmail is showing a message:

`Offline unavailable.

The browser you are using is missing some features required to enable offline. To enable offline, you must use Chrome with version 61 or higher.`

at https://mail.google.com/mail/u/0/#settings/offline with a logged in gmail account.

Environment:

67.0a1（2019-02-02), Windows 10

Comment 1

[Matthew N. [:MattN]]

Surprisingly I can't find a duplicate here or on webcompat.com

Comment 2

[Karl Dubost💡 :karlcow]

Attachment: Capture d’écran 2019-02-06 à 09.45.18.png

On Firefox Nightly 67.0a1 (2019-02-04) (64-bit)

Comment 3

[Karl Dubost💡 :karlcow]

    xti = "Offline unavailable.",

minified hell.

    Kti = function() {
      var b = jc + N(pg) + NFg + N(Jl) + g;
      b += Jti({
        xZa: Dy(xti),
        vZa: Dy(
          "The browser you are using is missing some features required to enable offline. To enable offline, you must use Chrome with version 61 or higher."
        )
      });
      return L(b + sea);
    },

I would contact them directly. Probably UA sniffing. Given the hard coded string about using Chrome.

Comment 4

[Firefox Bug Husbandry Bot]

Migrating Webcompat whiteboard priorities to project flags. See bug 1547409.

Comment 5

[Firefox Bug Husbandry Bot]

See bug 1547409. Migrating whiteboard priority tags to program flags.

Comment 6

[Firefox Bug Husbandry Bot]

See bug 1547409. Moving webcompat whiteboard tags to keywords.

Comment 7

[Mike Taylor [:miketaylr]]

I wonder what tech they rely on for Offline Gmail. Overholt, I think we talked about this recently... are you aware of what blockers might exist?

Comment 8

[Andrew Overholt [:overholt]]

I heard https://wicg.github.io/web-locks/ was needed and maybe also https://github.com/WICG/cookie-store (my quick bugzilla searches have turned up empty for implementation bugs; sorry). Last time we spoke about this on the mailing list, https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Clear-Site-Data was required but that had been shipped in Firefox right around that time.

Comment 9

[Karl Dubost💡 :karlcow]

I sent an email to the mailing list shared with google folks with a summary of the discussions so far.
The discussion started on June 2018. And as Andrew said most of the blockers at the time have been fixed since.
It's not yet clear if Chrome is using the cookie store and web-locks features for Gmail. We might know soon.

Comment 10

[Karl Dubost💡 :karlcow]

• Web Locks in Chrome https://bugs.chromium.org/p/chromium/issues/detail?id=161072

In Gmail js

this.wa = !!up.navigator.locks && vp && wp(69);

and

    LTf = function(b) {
      return new Qp(function(c) {
        var d = as + "_offline_lock";
        b.ra.Ib(YZb);
        up.navigator.locks.request(
          d,
          {
            ifAvailable: !0
          },
          function(e) {
            (e = !!e) ? b.ra.Ib(ZZb) : KTf(b, 7);
            c(e);
            return new Qp(m());
          }
        );
      });
    },

so there is a dependency on web-locks at least. Let's check for cookie store

The bug is in very active development
https://bugs.chromium.org/p/chromium/issues/detail?id=729800

but I didn't find trace of any usage in Gmail JS

Comment 11

[Mike Taylor [:miketaylr]]

Setting to webcompat:p1, but I don't think this is actually actionable by us right now.

Comment 12

[Karl Dubost💡 :karlcow]

• Web Locks (Chromium) has been fixed in Aug 14, 2018
• Cookie Store (Chromium) has been fixed in Sep 25, 2020

I would be good to diagnose again, to understand if anything prevent the offline mode.

Comment 13

[Karl Dubost💡 :karlcow]

Attachment: product.name

They definitely test different scenarios

    var uWi = function (c) {
      for (var d = c.rows, e = _.Vc + _.Q(_.ch) + _.cZ, f = d.length, g = 0; g < f; g++) e += _.qPi(d[g]);
      e += _.tPi(c) + _.vc;
      return (0, _.F) (e)
    },
    vWi = function (c, d) {
      c = yNi + _.Q(d.Jwb) + _.xa + _.Q(_.HS) + '" name="enable-offline"' + (c ? _.la : '') + _.w1f + _.Q(_.Xl) + _.iba + _.Q(d.Jwb) + _.Qa;
      return (0, _.F) (c + 'Enable offline mail</label>')
    },
    wWi = function (c) {
      var d = _.Wc + _.Q('r8') + _.db + _.Q(_.Xl) + _.Qa;
      d = d + _.RNi + (_.Q('r9') + _.$a + _.Q('PS') + _.$a + _.Q('byX') + _.Wa + _.Q('PU') + _.Qa);
      d = d + 'Offline unavailable.</div><p class="' + (_.Q('PT') + _.Qa + _.Vp(c) +
      '</p></div></td>');
      return (0, _.F) (d)
    },
    xWi = function () {
      var c = _.Vc + _.Q(_.ch) + _.hNi + _.Q(_.Sl) + _.Qa;
      c += wWi((0, _.Lz) ('The browser you are using is missing some features required to enable offline. To enable offline, you must use Chrome with version 61 or higher.'));
      return (0, _.F) (c + _.zea)
    },
    yWi = function (c) {
      var d = c.dad;
      c = c.Cad;
      var e = _.Vc + _.Q(_.ch) + _.hNi + _.Q(_.Sl) + _.Qa;
      e = d ? e + wWi((0, _.Lz) ('The version of Chrome you are using is missing some features required to enable offline. To enable offline, you must use Chrome with version 61 or higher.')) :
      c ? e + wWi((0, _.Lz) ('The version of Firefox you are using is missing some features required to enable offline. To enable offline, you must use Firefox with version 63 or higher.')) : e + wWi((0, _.Lz) ('The browser you are using is missing some features required to enable offline. To enable offline, you must use either Chrome or Firefox.'));
      return (0, _.F) (e + _.zea)
    },
    zWi = function (c) {
      c = c || {
      };
      var d = _.Vc + _.Q(_.ch) + _.hNi + _.Q(_.Sl) + _.Qa;
      c = '<span>Looks like there is not enough space available for offline mail. This may be caused by insufficient hard drive space or a web browser mode.&nbsp;</span><span>' + (_.mN(c) + _.rc);
      d += wWi((0, _.Lz) (c));
      return (0, _.F) (d + _.zea)
    },
    AWi = function () {
      var c = _.Vc + _.Q(_.ch) + _.hNi + _.Q(_.Sl) + _.Qa;
      c += wWi((0, _.Lz) ('Contact your administrator for further details.'));
      return (0, _.F) (c + _.zea)
    },
    BWi = function () {
      var c = _.Vc + _.Q(_.ch) + _.hNi + _.Q(_.Sl) + _.Qa;
      c += wWi((0, _.Lz) ('Offline is restricted to designated devices. Contact your administrator for further details.'));
      return (0, _.F) (c + _.zea)
    },

on Firefox, xWi is being triggered by _.Yp as d

They do have a specific product called "Mozilla Mail" which is sent to Firefox.

What I can't determine is that if it's hardcoded in the Mozilla Mail or if it's a feature detection.
The code being minified makes it very hard to know.

And given that this is in the HTTP raw response

    <meta name="application-name" content="Mozilla Mail" />
…
    <script type="text/javascript" nonce="w3dEBxZ1tiQ3+VlLWmpmvw">
      // <![CDATA[

…
      var GM_SUPPORTED_GECKO_VERSION = "46";
      var GM_SUPPORTED_CHROME_VERSION = "43";
      var GM_SUPPORTED_SAFARI_VERSION = "9";

…
      var GM_APP_NAME = "Mozilla Mail";

…
    </script>

OK there's a GLOBALS[61] which is associated to offlineEnabled and the value is 0 in the raw http response.

Comment 14

[Karl Dubost💡 :karlcow]

I tested with a chrome UA on Firefox Nightly 96.0a1 (2021-11-29) (64-bit)

1. I was able to activate the offline mode.
2. I was able to go to my mail with network deactivated
3. I was able to reload the UI with network deactivated
4. I was able to queue an email for sending later. When the network was reactivated, the email was sent.

It's not an exhaustive test of all features but that seems to work as expected.

Comment 15

[BugBot [:suhaib / :marco/ :calixte]]

The severity field for this bug is set to normal. However, this bug has a P1 WebCompat priority.
:denschub, could you consider increasing the severity of this web compatibility bug?

For more information, please visit auto_nag documentation.

Comment 16

[Dennis Schubert [:denschub]]

Thank you, bot!

This isn't a S1 in my opinion, this isn't completely breaking Gmail, it's "only" breaking offline mode. Since there is active work going on here, S2 feels appropriate.

Comment 17

[Oana Arbuzov [:oanaarbuzov]]

This is still an issue.
https://prnt.sc/UUMBePIpX2dX

Tested with:
Browser / Version: Firefox Nightly 103.0a1 (2022-06-07)
Operating System: Windows 10 Pro

Comment 18

[Calin Tanase]

Still affected.
https://prnt.sc/kNkuXbFTubiU

Tested on:
Operating system: Windows 10
Browser/Version: Firefox Nightly 111.0a1 (2023-01-20)