Refused to execute inline script because it violates the following Content Security Policy directive: "script-src 'self'"

Question

Im creating a chrome extension for Rss reader in that im getting the above error. please help

manifest.json

{
    "name": "Tutorialzine Extension",
        "manifest_version": 2,
        "version": "1.1",
        "description": "Making your first Google Chrome extension.",
        "icons": {
        "128": "icon_128.png"
    },
        "web_accessible_resources": ["script.js", "https://query.yahooapis.com"],
        "browser_action": {
        "default_icon": "icon.png",
            "default_popup": "tutorialzine.html"
    },
        "permissions": ["tabs", "<all_urls", "http://localhost/",
        "http://*/*", "https://*/*", "https://query.yahooapis.com"],
        "content_security_policy": "script-src 'self'; 'https://query.yahooapis.com';unsafe-inline; object-src 'self'"
}

script.js

$(document).ready(function () {

    var query = "SELECT * FROM feed WHERE url='http://feeds.feedburner.com/Tutorialzine' LIMIT 2";

    // Storing the seconds since the epoch in now:
    var now = (new Date()).getTime() / 1000;

    // If there is no cache set in localStorage, or the cache is older than 1 hour:
    if (!localStorage.cache || now - parseInt(localStorage.time) > 1 * 60 * 60) {
        $.get("yahoo.js", function (msg) {

            // msg.query.results.item is an array:
            var items = msg.query.results.item;
            var htmlString = "";

            for (var i = 0; i < items.length; i++) {
                var tut = items[i];

                // Extracting the post ID from the permalink:
                var id = tut.guid.content.match(/(\d+)$/)[0];

                // Looping and generating the markup of the tutorials:

                htmlString += '<div class="tutorial">\
                            <img src="http://tutorialzine.com/img/posts/' + id + '.jpg" />\
                            <h2>' + tut.title + '</h2>\
                            <p>' + tut.description + '</p>\
                            <a href="' + tut.link + '" target="_blank">Read more</a>\
                            </div>';
            }

            // Setting the cache
            localStorage.cache = htmlString;
            localStorage.time = now;

            // Updating the content div:
            $('#content').html(htmlString);
        }, 'json');
    } else {
        // The cache is fresh, use it:
        $('#content').html(localStorage.cache);
    }
}

Error in jquery.min.js:

Jquery.min.js contains inline script what to do

parentNode:d.removeChild(d.appendChild(s.createElement("div"))).parentNode===null,deleteExpando:true,checkClone:false,scriptEval:false,noCloneEvent:true,boxModel:null};b.type="text/javascript";try{b.appendChild(s.createTextNode("window."+f+"=1;"))}catch(i){}a.insertBefore(b,a.firstChild);if(A[f]){c.support.scriptEval=true;delete A[f]}try{delete b.test}catch(o){c.support.deleteExpando=false}a.removeChild(b);if(d.attachEvent&&d.fireEvent){d.attachEvent("onclick",function k(){c.support.noCloneEvent=

Solution

I also faced such type of problem when working with LinkedIn oAuth API.

I was using linkedIn API with following settings for cordova

config.xml

 <access origin="*" launch-external="yes"/>
  <allow-navigation href="*" />

Meta Tag was

 <meta http-equiv="Content-Security-Policy" content="default-src *; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' 'unsafe-eval'">

Script

<script type="text/javascript" src="http://platform.linkedin.com/in.js"></script>

When i run the application on emulator its giving

Fixed Problem to add uri into meta tag http://platform.linkedin.com like

<meta http-equiv="Content-Security-Policy" content="default-src *; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' 'unsafe-eval' http://platform.linkedin.com ">

Comments

[George]

bare in mind using unsafe-eval and unsafe-inline is a security risk. You might be ok just using 'self' and 'unsafe-inline'.

[GregJF]

'unsafe-inline' is a violation you might as well not have CSP

[Chirag Patel]

@George what is the alternate way of unsafe-inline

[George]

@ChiragPatel I believe although not certain, the best solution, is to use a hash string generated at build time, or a nonce value generated dynamically server side. But I may be completely wrong so I recommend researching trusted sources first. I'm not a security expert so mind my tentative language.

[matheen ulla]

thank you so much. this was the issue for me