View source for DevTools/Fission

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= About =
DevTools support for cross-site iframes with Fission is in progress and this page summarizes the current state.

The DevTools team is listening in in the '''#devtools:mozilla.org''' room on [https://chat.mozilla.org/#/room/#devtools:mozilla.org Mozilla's Matrix server].

Instructions for enabling Fission for DevTools:
# In ''about:config'', set the '''"fission.autostart"''' 
# Restart the browser

You can file DevTools Fission related bug in Bugzilla, [https://bugzilla.mozilla.org/enter_bug.cgi?product=DevTools&bug_type=defect&short_desc=%5bFission%5b&blocked=dt-fission here].

See detailed testing results ([https://docs.google.com/document/d/1YcLnu2oWpusu_Ws8yi3IYzg_J2rDL-iwvDdLcFDbi5M/edit# gdoc])

See also Fission Project [https://wiki.mozilla.org/Project_Fission wiki page]

= Fission Compatibility =
Milestones:

* <span style="background-color: #38761d; color: white;">M2</span> Q4 2020
* <span style="background-color: #ff9900; color: white;>M3</span> Q1-Q3 2021
* <span style="background-color: #2669b0; color: white;>MF</span> Future

== Panels ==
Summary of known issues related to DevTools panels.

=== Accessibility ===
The Accessibility panel should be fully compatible with Fission.

=== Application ===
* <span style="background-color: #2669b0; color: white;>MF</span> Service Workers coming from remote frames are not displayed ([https://bugzilla.mozilla.org/show_bug.cgi?id=1473257 bug 1473257]). 

=== Performance ===
* <span style="background-color: #2669b0; color: white;>MF</span> New Fission compatible Performance panel is enabled in Nightly and Beta. It yet needs to be enabled in Release ([https://bugzilla.mozilla.org/show_bug.cgi?id=1693314 bug 1693316]).

=== Inspector ===
* <span style="background-color: #2669b0; color: white;>MF</span> Advanced features related to highlighting elements in the page. This includes support for highlighting grid elements, shapes defined using CSS clip-path property, highlighting fonts, geometry editor for absolute positioned elements within relative positioned elements and inspecting CSS animations ([https://bugzilla.mozilla.org/show_bug.cgi?id=1568827 bug 1568827])

=== Console ===
The Console panel should be fully compatible with Fission.

=== Network ===
* <span style="background-color: #2669b0; color: white;>MF</span> Proper support for JS Context Switching ([https://bugzilla.mozilla.org/show_bug.cgi?id=1594726 bug 1594726], [https://bugzilla.mozilla.org/show_bug.cgi?id=1594728 bug 1594728])

=== Debugger ===
* <span style="background-color: #2669b0; color: white;>MF</span> Debugging of service workers should work as expected
* <span style="background-color: #2669b0; color: white;>MF</span> Debugger doesn't work properly if page loads two remote iframes from the same domain ([https://bugzilla.mozilla.org/show_bug.cgi?id=1503499 bug 1503499], [https://bugzilla.mozilla.org/show_bug.cgi?id=1678741 bug 1678741])

=== Style Editor ===
The Style Editor panel should be fully compatible with Fission

=== Storage ===
* <span style="background-color: #2669b0; color: white;>MF</span> Show all data coming from remote frames: Cookies, Session & Local storage, Extension storage, IndexDB and Cache data ([https://bugzilla.mozilla.org/show_bug.cgi?id=1644192 bug 1644192])

=== Memory ===
* <span style="background-color: #2669b0; color: white;>MF</span> Memory usage of remote frames is not displayed.

=== DOM ===
* <span style="background-color: #2669b0; color: white;>MF</span> Objects coming from remote frames are not displayed.

== Miscellaneous Features ==
Summary of known issues related to independent features.

=== Service Workers ===
* <span style="background-color: #2669b0; color: white;>MF</span> Support for Service Workers is not not compatible with Fission.