HTTP Cache
//github.com/realityripple/uxp/blob/master/netwerk/cache2/nsicachestorageservice.idl "@mozilla.org/netwerk/cache-storage-service;1" provides methods accessing “storage” objects – see nsicachestorage below – giving further access to cache entries – see nsicacheentry more below – per specific url.
... //github.com/realityripple/uxp/blob/master/netwerk/base/public/nsiloadcontextinfo.idl it is a helper interface wrapping following four arguments into a single one: private-browsing boolean flag anonymous load boolean flag app id number (0 for no app) is-in-browser boolean flag helper functions to create nsiloadcontextinfo objects: c++ consumers: ...
... nsicachestorage //github.com/realityripple/uxp/blob/master/netwerk/cache2/nsicachestorage.idl obtained from call to one of the *storage methods on nsicachestorageservice.
...And 2 more matches

Working with ArrayBuffers
this feature is based on the following work: //github.com/realityripple/uxp/blob/master/js/src/ctypes/ctypes.cpp#3080 //github.com/realityripple/uxp/blob/master/js/src/vm/arraybufferobject.cpp#1301 example 1 - image data the following example illustrates how to transfer a byte array pointed by ctypes.uint8_t.ptr to imagedata of canvas.
...passing an arraybuffer object to pointer type will pass the pointer to buffer (based on //github.com/realityripple/uxp/blob/master/js/src/ctypes/ctypes.cpp#3080).
... further, it returns datapointer, and there is no extra allocation (based on //github.com/realityripple/uxp/blob/master/js/src/vm/arraybufferobject.cpp#1301).

RTCConfiguration - Web APIs
rtcpmuxpolicy optional the rtcp mux policy to use when gathering ice candidates, in order to support non-multiplexed rtcp.
... the value must be one of those from the rtcrtcpmuxpolicy enum.
... rtcrtcpmuxpolicy enum the rtcrtcpmuxpolicy enum defines string constants which specify what ice candidates are gathered to support non-multiplexed rtcp.

RTCPeerConnection() - Web APIs
rtcpmuxpolicy optional the rtcp mux policy to use when gathering ice candidates, in order to support non-multiplexed rtcp.
... the value must be one of those from the rtcrtcpmuxpolicy enum.

io/file - Archive of obsolete content
apart from these options, this api always passes the following options: create_file, truncate (see //github.com/realityripple/uxp/blob/master/nsprpub/pr/include/prio.h#550).

nsIContentPolicy - Archive of obsolete content
reference: //github.com/realityripple/uxp/blob/master/dom/base/nscontentpolicy.cpp#l129.

How to contribute to the Learning Area on MDN - Learn web development
it may see periodical improvements or updates, and may eventually even be cleaned up (and de-archived) for better uxp focus, but for now, it's a historical snapshot for reference, not a living website.

Adding a new word to the en-US dictionary
the process is pretty straight-forward: get a clone of uxp, if you don't already have one, and make sure you can build it successfully.

Getting documentation updated
it may see periodical improvements or updates, and may eventually even be cleaned up (and de-archived) for better uxp focus, but for now, it's a historical snapshot for reference, not a living website.

Getting from Content to Layout
changes to a document originate in the content tree (from dom modification by scripting, insertion of elements from the parser, etc.) and are propogated to the layout tree through magic that primarily resides in //github.com/realityripple/uxp/blob/master/layout/base/nscssframeconstructor.cpp the frame constructor implements nsimutationobserver which allows it to "watch" the content tree.

How test harnesses work
server for test data (mozhttpd) invokes the binary (mozrunner) it is the job of the shim extension to shut down the browser logging (mozlog, in theory) (run tests, accrue results) cleanup: shutdown the browser check for crashes (mozcrash) reporting (moztest) marionette tests list of testing extensions pageloader (talos) mochitest: //github.com/realityripple/uxp/blob/master/testing/mochitest/install.rdf (mochitest) ...

JSScript
see also uxp source jsscript.h uxp source jsscript.cpp ...

Viewing and searching Mozilla source code online
uxp source code can be found at the pale moon repository.

Index
see //github.com/realityripple/uxp/blob/master//mailnews/addrbook/public/nsiabcard.idl for more details.

nsIAbCard
see //github.com/realityripple/uxp/blob/master//mailnews/addrbook/public/nsiabcard.idl for more details.