old_contents: it("should require js module from base64 data-uri", function() {
  	const mod = require("data:text/javascript;charset=utf-8;base64,bW9kdWxlLmV4cG9ydHMgPSB7CiAgbnVtYmVyOiA0MiwKICBmbjogKCkgPT4gIkhlbGxvIHdvcmxkIgp9Ow==");
  	expect(mod.number).toBe(42);
  	expect(mod.fn()).toBe("Hello world");
  });
  
  it("should require js module from ascii data-uri", function() {
  	const mod = require("data:text/javascript;charset=utf-8,module.exports={number:42,fn:()=>\"Hello world\"}");
  	expect(mod.number).toBe(42);
  	expect(mod.fn()).toBe("Hello world");
  });
  
  it("should import js module from base64 data-uri", function() {
  	const mod = require('./module-with-imports');
  	expect(mod.number).toBe(42);
  	expect(mod.fn()).toBe("Hello world");
  });
  
  it("should require coffee module from base64 data-uri", function() {
  	const mod = require('coffee-loader!data:text/javascript;charset=utf-8;base64,bW9kdWxlLmV4cG9ydHMgPQogIG51bWJlcjogNDIKICBmbjogKCkgLT4gIkhlbGxvIHdvcmxkIg==');
  	expect(mod.number).toBe(42);
  	expect(mod.fn()).toBe("Hello world");
  });
  
  it("should require json module from base64 data-uri", function() {
  	const mod = require('data:application/json;charset=utf-8;base64,ewogICJpdCI6ICJ3b3JrcyIsCiAgIm51bWJlciI6IDQyCn0K');
  	expect(mod.it).toBe("works");
  	expect(mod.number).toBe(42);
  })
  
new_contents: it("should require js module from base64 data-uri", function() {
  	const mod = require("data:text/javascript;charset=utf-8;base64,bW9kdWxlLmV4cG9ydHMgPSB7CiAgbnVtYmVyOiA0MiwKICBmbjogKCkgPT4gIkhlbGxvIHdvcmxkIgp9Ow==");
  	expect(mod.number).toBe(42);
  	expect(mod.fn()).toBe("Hello world");
  });
  
  it("should require js module from ascii data-uri", function() {
  	const mod = require("data:text/javascript;charset=utf-8,module.exports={number:42,fn:()=>\"Hello world\"}");
  	expect(mod.number).toBe(42);
  	expect(mod.fn()).toBe("Hello world");
  });
  
  it("should import js module from base64 data-uri", function() {
  	const mod = require('./module-with-imports');
  	expect(mod.number).toBe(42);
  	expect(mod.fn()).toBe("Hello world");
  });
  
  it("should require coffee module from base64 data-uri", function() {
  	const mod = require('coffee-loader!Data:text/javascript;charset=utf-8;base64,bW9kdWxlLmV4cG9ydHMgPQogIG51bWJlcjogNDIKICBmbjogKCkgLT4gIkhlbGxvIHdvcmxkIg==');
  	expect(mod.number).toBe(42);
  	expect(mod.fn()).toBe("Hello world");
  });
  
  it("should require json module from base64 data-uri", function() {
  	const mod = require('DATA:application/json;charset=utf-8;base64,ewogICJpdCI6ICJ3b3JrcyIsCiAgIm51bWJlciI6IDQyCn0K');
  	expect(mod.it).toBe("works");
  	expect(mod.number).toBe(42);
  })
  
subject: update data uri test cases