Chrome not setting local storage

I am creating a Chrome packaged app. I want to display a EULA the first time the user opens the app. I want to us Chrome's local storage to test whether or not the app has been opened.

Here is my javascript:

function disagree(){

    chrome.storage.local.set({eula:'false'}, function(result) {

        console.log(result.eula)});

        // console.log returns undefined

        // Returns: TypeError: Cannot read property 'eula' of undefined

    document.getElementById("eulaDisagree").style.display = "block";

}

function agree(){

    chrome.storage.local.set({eula:'true'}, function(result) {

        console.log("Set eula: " + result.eula);

        // console.log returns undefined

        // Returns: TypeError: Cannot read property 'eula' of undefined

        chrome.storage.local.get("eula"), function(result){

        console.log("Get Result: " + result.eula)};

        // Returns this error: extensions::uncaught_exception_handler:8 Error in response to 

        // storage.set: Error: Invocation of form get(string) doesn't match definition 

        // get(optional string or array or object keys, function callback)

    });



    document.getElementById("background").style.height = "0%";

    document.getElementById("foreground").style.height = "0%";

    document.getElementById("foreground").style.border = "none";

}



// Creates event listeners

document.addEventListener('DOMContentLoaded', function(){

    document.getElementById("disagree").addEventListener("click", function(){

    disagree();

    }); 

    document.getElementById("agree").addEventListener("click", function(){

    agree();

    });

});