Help Web Ide can't find require(module)

Temporary work around
In the Web IDE click on the settings (gear icon) and go to project.
Create a sandbox directory. Mine is called EP.
Another button appears under the send to Espruino button.
With Explorer copy your program into EP/Projects.
Now for the modules. With a browser go to
http://espruino.com/modules/
Click on the module you need, and it will fill the screen.
Select all and copy into Notepad and save with the same name in
EP/modules.
You might look to see if your module requires other modules. If so, copy and save them as well.

In Web IDE load your program into the right side from EP/Projects/
Now try the send to Espruino.
With any luck your program will load.

I used the following to test this method. The ESP8266 module requires the AT module as well.

console.log("aaa"); require("ESP8266WiFi_0v25"); console.log("bbb");