Remove dayjs dependency

index.js

@@ -4,7 +4,6 @@ const { name, version, homepage } = require('./package');
 
 const urlParser = require('url');
 const crypto = require('crypto');
-const dayjs = require('dayjs');
 const debug = require('debug')(name);
 const ignoredEvents = require('./lib/ignoredEvents');
 const { parseRequestCookies, formatCookie } = require('./lib/cookies');
@@ -28,7 +27,7 @@ function addFromFirstRequest(page, params) {
   if (!page.__timestamp) {
     page.__wallTime = params.wallTime;
     page.__timestamp = params.timestamp;
-    page.startedDateTime = dayjs.unix(params.wallTime).toISOString(); //epoch float64, eg 1440589909.59248
+    page.startedDateTime = new Date(params.wallTime * 1000).toISOString();
     // URL is better than blank, and it's what devtools uses.
     page.title = page.title === '' ? params.request.url : page.title;
   }
@@ -245,7 +244,7 @@ module.exports = {
             // (see https://cs.chromium.org/chromium/src/third_party/WebKit/Source/platform/network/ResourceLoadTiming.h?q=requestTime+package:%5Echromium$&dr=CSs&l=84)
             const entrySecs =
               page.__wallTime + (params.timestamp - page.__timestamp);
-            entry.startedDateTime = dayjs.unix(entrySecs).toISOString();
+            entry.startedDateTime = new Date(entrySecs * 1000).toISOString();
           }
           break;
 

lib/cookies.js

@@ -1,16 +1,27 @@
 const Cookie = require('tough-cookie').Cookie;
-const dayjs = require('dayjs');
 
 function formatCookie(cookie) {
+  let expiresISO;
+
+  if (cookie.expires instanceof Date) {
+    expiresISO = cookie.expires.toISOString();
+  } else if (cookie.expires === 'Infinity' || cookie.expires === null) {
+    expiresISO = null;
+  } else {
+    const date = new Date(cookie.expires);
+    if (!isNaN(date)) {
+      expiresISO = date.toISOString();
+    } else {
+      // There's no date
+      expiresISO = null;
+    }
+  }
   return {
     name: cookie.key || cookie.name,
     value: cookie.value,
     path: cookie.path || undefined, // must be undefined, not null, to exclude empty path
     domain: cookie.domain || undefined, // must be undefined, not null, to exclude empty domain
-    expires:
-      cookie.expires === 'Infinity'
-        ? undefined
-        : dayjs(cookie.expires).toISOString(),
+    expires: expiresISO,
     httpOnly: cookie.httpOnly,
     secure: cookie.secure
   };

lib/entryFromResponse.js

@@ -1,5 +1,4 @@
 'use strict';
-const dayjs = require('dayjs');
 const max = Math.max;
 
 const {
@@ -186,7 +185,7 @@ module.exports = function(entry, response, page, options) {
       // (see https://cs.chromium.org/chromium/src/third_party/WebKit/Source/platform/network/ResourceLoadTiming.h?q=requestTime+package:%5Echromium$&dr=CSs&l=84)
       const entrySecs =
         page.__wallTime + (timing.requestTime - page.__timestamp);
-      entry.startedDateTime = dayjs.unix(entrySecs).toISOString();
+      entry.startedDateTime = new Date(entrySecs * 1000).toISOString();
 
       const queuedMillis =
         (timing.requestTime - entry.__requestWillBeSentTime) * 1000;

package.json

@@ -43,7 +43,6 @@
     "prettier": "~1.11.1"
   },
   "dependencies": {
-    "dayjs": "1.11.7",
     "debug": "4.3.4",
     "tough-cookie": "5.0.0"
   }