i am creating a chrome extension i created a diretory with 1.background.js 2.icon.png 3.icon2.png 4.manifest.json 5.myscript.js
my manifest.json code is
{
"manifest_version": 2,
"name": "One-click Kittens",
"description": "This extension demonstrates a browser action with kittens.",
"version": "1.0",
"background": {
"scripts": ["background.js"]
},
"permissions": [ "storage"],
"content_scripts": [
{
"matches": ["http://*/*"],
"js": ["myscript.js"]
}
],
"browser_action": {
"default_icon": "icon.png"
}
}
code for myscript.js which is content script is
document.body.innerHTML=''+document.body.innerHTML+'' ; var iframe = document.getElementById("frame1"); function addingevent(){ chrome.extension.sendMessage({change: "icon"}, function(response) { console.log(response.resp); });
} iframe.onload = function(){ var iframeDocument = iframe.contentDocument || iframe.contentWindow.document; if(iframeDocument != null) {var bb=iframeDocument.getElementById('mybutton'); if(bb != null) { bb.addEventListener("click",addingevent,false) alert("Hello World"); }} }
and the code for background.js is
chrome.extension.onMessage.addListener(
function(request, sender, sendResponse) {
console.log("from a content script:from the extension");
chrome.storage.local.get("icon",function(val){
if(val.icon == "icon1")
{chrome.browserAction.setIcon({"path" :"icon2.png"},function(){});
chrome.storage.local.set({"icon":"icon"},function(){});
}
else
{chrome.browserAction.setIcon({"path" :"icon.png"},function(){});
chrome.storage.local.set({"icon":"icon1"},function(){});
}
});
sendResponse({resp: "success"});
});
objective of this extension is when user click on the button which is in the frame loaded from url http://onemoredemo.appspot.com/ icon should be toggled between icon.png and icon2.png
this extension works perfectly when i load it in webpage with url http://onemoredemo.appspot.com/ there is frame created and when i click button it is changing icon but when i open url stackoverflow.com then frame is created and showing a button in it,but when i click on the button icon remains same i am expecting that icon will be changed irrespective of url why its not changing in other url??please specify the reason