我刚刚将我的chrome扩展更新为json版本2,并且我试图让我的扩展再次工作.问题是sendRequest一路贬值.所以我将代码从https://developer.chrome.com/extensions/messaging.html复制 到我的脚本中并将其修改为我自己的变量名称,但它不起作用.
那么我回去并输入原始代码,它仍然无法正常工作.我已经阅读了多个相似的问题[并希望这不会被复制,因为它们都不是我的情况].
manifest.json的:
{
"background": {
"page": "background.html"
},
... ... ...
"content_scripts": [ {
"css": [ "style.css" ],
"js": [ "jq.js", "script.js" ],
"matches": [ "http://*.craigslist.org/*/*.htm*" ]
} ],
... ... ...
"permissions": [ "tabs", "http://*.craigslist.org/*/*.htm*" ],
"manifest_version": 2,
"update_url": "http://clients2.google.com/service/update2/crx",
"version": "3.0"
}
background.html:
<html>
<script type='text/javascript'>
chrome.runtime.onMessage.addListener(
function(request, sender, sendResponse) {
console.log(sender.tab ?
"from a content script:" + sender.tab.url :
"from the extension");
if (request.greeting == "hello")
sendResponse({farewell: "goodbye"});
});
});
</script>
</html>
的script.js: …
我的chrome扩展程序存在小问题.
我只是想从另一台服务器获取一个JSON数组.但是清单2不允许我这样做.我试过指定content_security_policy,但JSON数组存储在没有SSL证书的服务器上.
那么,如果不使用清单1,我该怎么办？
javascript ajax json google-chrome-extension content-security-policy
尝试在我的内容和后台脚本之间进行通信时,我收到以下错误:
Port error: Could not establish connection. Receiving end does not exist.
Error in event handler for 'undefined': Cannot read property 'message' of undefined
TypeError: Cannot read property 'message' of undefined
background.js
function onRequest(request, sender, callbackFunction) {
console.log("Me (BS) became this Message:" + request.message);
sendResponse({message: request.message})
};
chrome.extension.onRequest.addListener(onRequest);
streamcloud.js
function contactBackground(nachricht){
chrome.extension.sendMessage({message: nachricht}, function(response) {
console.log("The Background Script got the following Message: " + response.message);
});
}
和我的manifest.json
{
"name": "InstantWatch - Dev",
"manifest_version": 2,
"version": "0.7",
"permissions": ["tabs", …我尝试创建一个简单的chrome扩展,在chrome的上下文菜单中添加一个选项.
这是我的manifest.json
{
"manifest_version": 2,
"background": "background.html",
"description": "Add a context menu item to search for selected text at Google Maps.",
"icons": {
"16": "icon16.png"
},
"name": "Google Maps Right Click",
"permissions": [ "contextMenus", "tabs" ],
"version": "1.0"
}
在这里我的background.html:
<script>
function searchgooglemaps(info)
{
var searchstring = info.selectionText;
chrome.tabs.create({url: "http://maps.google.com/maps?q=" + searchstring})
}
chrome.contextMenus.create({title: "Search Google Maps", contexts:["selection"], onclick: searchgooglemaps});
</script>
但是,当我加载扩展程序并右键单击某个选项时,"搜索Google地图"按钮不会出现,我不明白为什么......
预先感谢您的帮助.
我有一个简单的Chrome扩展程序,在Google Chrome中显示一个小图标.点击后,它会加载我网站的搜索页面,该页面会将您重定向到正确的页面.
https://chrome.google.com/webstore/detail/w3patrol-watch-over-any-w/addcgpijdjacmndaadfgcpbfinagiplm是扩展程序.
现在,谷歌迫使我更新到清单版本2,而不是1.但这打破了我的工作扩展.
在manifest.json我添加了manifest_version 2,但从那时起,当我点击它时,图标不再起作用了.
{
"background": {
"page": "background.html"
},
"browser_action": {
"default_icon": "icon19.png",
"default_title": "__MSG_default_title__"
},
"default_locale": "en",
"description": "__MSG_description__",
"icons": {
"128": "icon128.png",
"19": "icon19.png",
"48": "icon48.png"
},
"name": "__MSG_name__",
"permissions": [ "tabs", "http://*.w3patrol.com/" ],
"update_url": "http://clients2.google.com/service/update2/crx",
"version": "1.0",
"manifest_version": 2
}
这是background.html
<script type="text/javascript">
chrome.browserAction.onClicked.addListener(function(tab) {
chrome.tabs.getSelected(null,function(tab) {
chrome.tabs.create( { url: "http://w3patrol.com/search.php?q=" +tab.url } );
});
});
</script>
我需要添加/更改以使其与清单版本2一起使用？