当我打开WAVE(Web Accessibility Evaluation Tool)扩展时,我的服务工作人员在Chrome中抛出此错误:
Uncaught(in promise)TypeError:请求方案'chrome-extension'在sw.js:52(anonymous)@ sw. js:52 Promise.then(promise)(anonymous)@ sw.js:50 Promise.then(promise)(anonymous)@ sw.js:45 Promise.then(promise)(anonymous)@ sw.js:38不受支持
我的服务员代码是:
(function () {
'use strict';
var consoleLog;
var writeToConsole;
const CACHE_NAME = '20180307110051';
const CACHE_FILES = [
'https://fonts.gstatic.com/s/notosans/v6/9Z3uUWMRR7crzm1TjRicDv79_ZuUxCigM2DespTnFaw.woff2',
'https://fonts.gstatic.com/s/notosans/v6/ByLA_FLEa-16SpQuTcQn4Igp9Q8gbYrhqGlRav_IXfk.woff2',
'https://fonts.gstatic.com/s/notosans/v6/LeFlHvsZjXu2c3ZRgBq9nJBw1xU1rKptJj_0jans920.woff2',
'https://fonts.gstatic.com/s/notosans/v6/PIbvSEyHEdL91QLOQRnZ1xampu5_7CjHW5spxoeN3Vs.woff2',
'https://fonts.gstatic.com/s/materialicons/v22/2fcrYFNaTjcS6g4U3t-Y5ZjZjT5FdEJ140U2DJYC3mY.woff2',
'https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/fonts/fontawesome-webfont.woff2',
'favicon.20180205072319.ico',
'favicons/android-chrome-512x512.20180211120531.png',
'favicons/android-chrome-192x192.20180211120531.png',
'offline.html'
];
// for debugging:
writeToConsole = false;
consoleLog = function (message) {
if (writeToConsole) {
console.log(message);
}
};
// https://stackoverflow.com/questions/37117933/service-workers-not-updating
self.addEventListener('install', function (e) {
e.waitUntil(
Promise.all([caches.open(CACHE_NAME), self.skipWaiting()]).then(function (storage) {
var static_cache = storage[0];
return Promise.all([static_cache.addAll(CACHE_FILES)]);
})
);
});
// intercept network requests:
self.addEventListener('fetch', function (event) {
consoleLog('Fetch event for ' + event.request.url);
event.respondWith(
caches.match(event.request).then(function (response) {
if (response) {
consoleLog('Found ' + event.request.url + ' in cache');
return response;
}
consoleLog('Network request for ' + event.request.url);
// add fetched files to the cache:
return fetch(event.request.clone()).then(function (response) {
// Respond with custom 404 page
if (response.status === 404) {
return caches.match('error?status=404');
}
return caches.open(CACHE_NAME).then(function (cache) {
if (event.request.url.indexOf('test') < 0) {
cache.put(event.request.url, response.clone());
}
return response;
}).catch(function () {
console.log("Uncaught (in promise) TypeError: Request scheme 'chrome-extension' is unsupported");
});
});
}).catch(function (error) {
// respond with custom offline page:
consoleLog('Error, ' + error);
// Really need an offline page here:
return caches.match('offline.html');
})
);
});
// delete unused caches
// https://stackoverflow.com/questions/37117933/service-workers-not-updating
self.addEventListener('activate', function (e) {
e.waitUntil(
Promise.all([
self.clients.claim(),
caches.keys().then(function (cacheNames) {
return Promise.all(
cacheNames.map(function (cacheName) {
if (cacheName !== CACHE_NAME) {
console.log('deleting', cacheName);
return caches.delete(cacheName);
}
})
);
})
])
);
});
}());
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我不清楚问题的性质和如何纠正它。非常感谢提前帮助!
5条答案
按热度按时间8ehkhllq1#
WAVE在您的站点中包含一些代码,然后它会使用以chrome-extension://xyz开头的URL向WAVE扩展本身发出一些请求。您的服务拦截了此请求,并希望自己获取,因为此请求未被缓存。但是service worker中不允许使用协议/请求方案chrome-extension://的URL。
因此,您可能不希望使用服务工作者处理这些WAVE请求。
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ohfgkhjo2#
这是因为安装了Chrome扩展在我的情况下,它是wappalyzer
5lwkijsr3#
这些作品中的任何一件或全部
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但我在想'一个请求可以来自否定上述条件的扩展吗?'如果是,那么我如何确保唯一成功的是来自'self'的请求。
zqry0prt4#
gmxoilav5#
如果您正在使用HTTP响应
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