1448740 - Service worker messages from iFrame have zero-length string origin

Status: RESOLVED DUPLICATE of bug 1348082

(Core :: DOM: Service Workers, defect, P3)

Description

[Matthew Slipper]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:60.0) Gecko/20100101 Firefox/60.0
Build ID: 20180322152034

Steps to reproduce:

1. Create a page that hosts an iFrame that registers a service worker.
2. Create and register a service worker from the iFrame that logs postMessage event origins.
3. Send a message to the service worker.


Actual results:

The event's origin is a zero-length string.


Expected results:

The event's origin should be set to the sending client's origin.

It looks like mOrigin is never set in https://dxr.mozilla.org/comm-central/source/mozilla/dom/serviceworkers/ServiceWorkerPrivate.cpp#540 - could this be the issue?

Comment 1

[ovidiu boca[:Ovidiu]]

Hi Matthew Slipper,

Can you please download FF Nightly 61.0a1 from here: and retest this issue to see if this is reproducible also with this version.
I'm not very familiar with this service worker but I think the development team from this component can help you. Thanks

Comment 2

[Marion Daly [:mdaly]]

Andrew: Verify bug and see if it relates to any other bugs we have.

Comment 3

[ovidiu boca[:Ovidiu]]

Update for comment 1: Sorry I forgot to add the link from where you can download Nightly: https://nightly.mozilla.org/

Comment 4

[Ben Kelly [:bkelly, not reviewing]]

This is a known compat bug.  See bug 1348082.

Note, the origin should always be the same as `self.origin` since service workers are only allowed to interact with same-origin things.  You can use that as a work-around.