javascript 未捕获的网络错误：无法在“WorkerGlobalScope”上执行“importScripts”
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Uncaught NetworkError: Failed to execute 'importScripts' on 'WorkerGlobalScope'
提问by user3462649
I am trying to import json data from web worker using importSctipts, the following error occurs.
我正在尝试使用 importSctipts 从 web worker 导入 json 数据，出现以下错误。
Uncaught NetworkError: Failed to execute 'importScripts' on 'WorkerGlobalScope': The script at (my:URL to fetch data from server) failed to load.
Uncaught NetworkError: Failed to execute 'importScripts' on 'WorkerGlobalScope': The script at (my:URL to fetch data from server) failed to load.
Web worker code is here. I am able to send basic messages from my web worker thread and main js thread. I want to fetch jsonp data from my server from web worker thread and then reply to main js thread.
Web Worker 代码在这里。我能够从我的网络工作线程和主 js 线程发送基本消息。我想从 Web 工作线程从我的服务器获取 jsonp 数据，然后回复主 js 线程。
/*web worker js file to fetch json data from server and then return to main javascript thread*/
self.onmessage = function(e)
{
var curr = setInterval(function()
{
var message = e.data;
fetchMyTournament(message);
}, 10000);
}
function fetchMyTournament(userid)
{
self.postMessage('worker saying hi');
var url = "(server URL mapping)?callback=processInfo&type=(typeOfArgument)&userId="+userid;
importScripts(url);
self.postMessage("After import script");
}
function processInfo(objJSON)
{
self.postMessage("Data returned from the server...: "
+ JSON.stringify(objJSON));
}
回答by mazout
importScript() must be placed outside of a function. For your case you should use fetch(url). You should also add async to each function, and use it this way:
importScript() 必须放在函数之外。对于您的情况，您应该使用 fetch(url)。您还应该为每个函数添加异步，并以这种方式使用它：
let message = fetchMyTournament(message).then(function(result){return result;});
回答by nawaz1989
For my case i was importing PouchDB like this:
importScripts("//cdn.jsdelivr.net/pouchdb/5.3.1/pouchdb.min.js");
就我而言，我是这样导入 PouchDB 的：
importScripts("//cdn.jsdelivr.net/pouchdb/5.3.1/pouchdb.min.js");
The url should start with proper http/https.
So changing to this solved the problem:
importScripts("https://cdn.jsdelivr.net/pouchdb/5.3.1/pouchdb.min.js");
url 应该以正确的 http/https 开头。所以改成这个就解决了这个问题：
importScripts("https://cdn.jsdelivr.net/pouchdb/5.3.1/pouchdb.min.js");
