e10s experiments (with nightly from 2016.02-03)

child.js

dump("*** child context\n");

content.js

// This file is loaded under data/
dump("*** child context\n");

test1.js

const { remoteRequire } = require("sdk/remote/parent");
remoteRequire("./child.js", module);

test1.log

*** child context
console.error:
  Message: Module `resource://nosquint-at-urandom-dot-ca/child.js` is not found at resource://nosquint-at-urandom-dot-ca/child.js
  Stack:
    @resource://gre/modules/commonjs/sdk/remote/child.js:81:3
emitOnObject@resource://gre/modules/commonjs/sdk/event/core.js:112:9
emit@resource://gre/modules/commonjs/sdk/event/core.js:89:38
messageReceived@resource://gre/modules/commonjs/sdk/remote/child.js:67:37

test2.js

var pageMod = require("sdk/page-mod");

pageMod.PageMod({
  include: "*",
  // file is data/content.js
  contentScriptFile: "./content.js"
});

test2.log

console.error: nosquint:
  Error opening input stream (invalid filename?): resource://nosquint-at-urandom-dot-ca/data/content.js