HTML Web Worker and Jquery Ajax call
I'm wondering if I can use jQuery inside the web worker file. Google Chrome gives me this error: "Uncaught ReferenceError: $ is not defined".
Here is the code: The parent file:
var loader = new Worker(BASE_URL + "js/rss_loader_worker.js");
// Ask the worker to start loading the RSS from the server
loader.postMessage("loadRss");
// When receive the response from the server
loader.onmessage = function (event) {
console.log(event.data);
}
The worker file:
onmessage = function (event) {
if (event.data === "loadRss") {
loadRss();
}
}
/**
* This function handles the AJAX request to the server side
* then pass the content to the view page
* @param none
* @return html text
*/
loadRss = function () {
$.ajax({
data: {city: CITY_LOCATION},
url: BASE_URL + "/getfeeds",
onsucess: function (data) {
}
});
}
Please help, thank you :)
No you cannot. There's no access to non-thread safe components or the DOM and you have to pass specific data in and out of a thread through serialized objects. So you have to work really hard to cause problems in your code. jQuery is a JavaScript DOM library.
But you can use a native XMLHttpRequest
in your worker however.
And, importing external scripts does not go via the page with a script
tag : use importScripts() for that in your worker file.
Here's what I found:
You can load external script files or libraries into a worker with the
importScripts()
function.
http://www.html5rocks.com/en/tutorials/workers/basics/#toc-enviornment-loadingscripts
importScripts('script1.js');
importScripts('script2.js');
or
importScripts('script1.js', 'script2.js');
Although, you cannot load jQuery, because jQuery requires DOM access, which web workers don't have.