securityos/node_modules/next/dist/client/performance-relayer.js

104 lines
3.8 KiB
JavaScript

/* global location */ "use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
Object.defineProperty(exports, "default", {
enumerable: true,
get: function() {
return _default;
}
});
// copied to prevent pulling in un-necessary utils
const WEB_VITALS = [
"CLS",
"FCP",
"FID",
"INP",
"LCP",
"TTFB"
];
const initialHref = location.href;
let isRegistered = false;
let userReportHandler;
function onReport(metric) {
if (userReportHandler) {
userReportHandler(metric);
}
// This code is not shipped, executed, or present in the client-side
// JavaScript bundle unless explicitly enabled in your application.
//
// When this feature is enabled, we'll make it very clear by printing a
// message during the build (`next build`).
if (process.env.NODE_ENV === "production" && // This field is empty unless you explicitly configure it:
process.env.__NEXT_ANALYTICS_ID) {
var _window___NEXT_DATA__;
const body = {
dsn: process.env.__NEXT_ANALYTICS_ID,
id: metric.id,
page: (_window___NEXT_DATA__ = window.__NEXT_DATA__) == null ? void 0 : _window___NEXT_DATA__.page,
href: initialHref,
event_name: metric.name,
value: metric.value.toString(),
speed: "connection" in navigator && navigator["connection"] && "effectiveType" in navigator["connection"] ? navigator["connection"]["effectiveType"] : ""
};
const blob = new Blob([
new URLSearchParams(body).toString()
], {
// This content type is necessary for `sendBeacon`:
type: "application/x-www-form-urlencoded"
});
const vitalsUrl = "https://vitals.vercel-insights.com/v1/vitals";
// Navigator has to be bound to ensure it does not error in some browsers
// https://xgwang.me/posts/you-may-not-know-beacon/#it-may-throw-error%2C-be-sure-to-catch
const send = navigator.sendBeacon && navigator.sendBeacon.bind(navigator);
function fallbackSend() {
fetch(vitalsUrl, {
body: blob,
method: "POST",
credentials: "omit",
keepalive: true
}).catch(console.error);
}
try {
// If send is undefined it'll throw as well. This reduces output code size.
send(vitalsUrl, blob) || fallbackSend();
} catch (err) {
fallbackSend();
}
}
}
const _default = (onPerfEntry)=>{
// Update function if it changes:
userReportHandler = onPerfEntry;
// Only register listeners once:
if (isRegistered) {
return;
}
isRegistered = true;
const attributions = process.env.__NEXT_WEB_VITALS_ATTRIBUTION;
for (const webVital of WEB_VITALS){
try {
let mod;
if (process.env.__NEXT_HAS_WEB_VITALS_ATTRIBUTION) {
if (attributions == null ? void 0 : attributions.includes(webVital)) {
mod = require("next/dist/compiled/web-vitals-attribution");
}
}
if (!mod) {
mod = require("next/dist/compiled/web-vitals");
}
mod["on" + webVital](onReport);
} catch (err) {
// Do nothing if the module fails to load
console.warn("Failed to track " + webVital + " web-vital", err);
}
}
};
if ((typeof exports.default === 'function' || (typeof exports.default === 'object' && exports.default !== null)) && typeof exports.default.__esModule === 'undefined') {
Object.defineProperty(exports.default, '__esModule', { value: true });
Object.assign(exports.default, exports);
module.exports = exports.default;
}
//# sourceMappingURL=performance-relayer.js.map