https://losmensajeros.com.ar/mi_contenido/cache/wph/bfea8261.js

1
2;(function () {
3   
4
5  var urlToPreload
6  var mouseoverTimer
7  var lastTouchTimestamp
8
9  var prefetcher = document.createElement('link')
10  var isSupported = prefetcher.relList && prefetcher.relList.supports && prefetcher.relList.supports('prefetch')
11  var isDataSaverEnabled = navigator.connection && navigator.connection.saveData
12  var allowQueryString = 'instantAllowQueryString' in document.body.dataset
13  var allowExternalLinks = 'instantAllowExternalLinks' in document.body.dataset
14
15  if (isSupported && !isDataSaverEnabled) {
16    prefetcher.rel = 'prefetch'
17    document.head.appendChild(prefetcher)
18
19    var eventListenersOptions = {
20      capture: true,
21      passive: true
22    }
23    document.addEventListener('touchstart', touchstartListener, eventListenersOptions)
24    document.addEventListener('mouseover', mouseoverListener, eventListenersOptions)
25  }
26
27  function touchstartListener (event) {
28     
29    lastTouchTimestamp = performance.now()
30
31    var linkElement = event.target.closest('a')
32
33    if (!isPreloadable(linkElement)) {
34      return
35    }
36
37    linkElement.addEventListener('touchcancel', touchendAndTouchcancelListener, { passive: true })
38    linkElement.addEventListener('touchend', touchendAndTouchcancelListener, { passive: true })
39
40    urlToPreload = linkElement.href
41    preload(linkElement.href)
42  }
43
44  function touchendAndTouchcancelListener () {
45    urlToPreload = undefined
46    stopPreloading()
47  }
48
49  function mouseoverListener (event) {
50    if (performance.now() - lastTouchTimestamp < 1100) {
51      return
52    }
53
54    var linkElement = event.target.closest('a')
55
56    if (!isPreloadable(linkElement)) {
57      return
58    }
59
60    linkElement.addEventListener('mouseout', mouseoutListener, { passive: true })
61
62    urlToPreload = linkElement.href
63
64    mouseoverTimer = setTimeout(function () {
65      preload(linkElement.href)
66      mouseoverTimer = undefined
67    }, 65)
68  }
69
70  function mouseoutListener (event) {
71    if (event.relatedTarget && event.target.closest('a') === event.relatedTarget.closest('a')) {
72      return
73    }
74
75    if (mouseoverTimer) {
76      clearTimeout(mouseoverTimer)
77      mouseoverTimer = undefined
78    } else {
79      urlToPreload = undefined
80      stopPreloading()
81    }
82  }
83
84  function isPreloadable (linkElement) {
85    if (!linkElement || !linkElement.href) {
86      return
87    }
88
89    if (urlToPreload === linkElement.href) {
90      return
91    }
92
93    var preloadLocation = new URL(linkElement.href)
94
95    if (!allowExternalLinks && preloadLocation.origin !== location.origin && !('instant' in linkElement.dataset)) {
96      return
97    }
98
99    if (!['http:', 'https:'].includes(preloadLocation.protocol)) {
100      return
101    }
102
103    if (preloadLocation.protocol === 'http:' && location.protocol === 'https:') {
104      return
105    }
106
107    if (!allowQueryString && preloadLocation.search && !('instant' in linkElement.dataset)) {
108      return
109    }
110
111    if (preloadLocation.hash && preloadLocation.pathname + preloadLocation.search === location.pathname + location.search) {
112      return
113    }
114
115    if ('noInstant' in linkElement.dataset) {
116      return
117    }
118
119    return true
120  }
121
122  function preload (url) {
123    prefetcher.href = url
124  }
125
126  function stopPreloading () {
127    prefetcher.removeAttribute('href')
128  }
129})()