1 files changed, 0 insertions, 127 deletions
diff --git a/src/main/resources/js/prefetch.js b/src/main/resources/js/prefetch.js
deleted file mode 100644
index ab9deae..0000000
--- a/src/main/resources/js/prefetch.js
+++ /dev/null
@@ -1,127 +0,0 @@
-/*! instant.page v1.2.2 - (C) 2019 Alexandre Dieulot - https://instant.page/license */
-
-let urlToPreload;
-let mouseoverTimer;
-let lastTouchTimestamp;
-
-const prefetcher = document.createElement("link");
-const isSupported = prefetcher.relList && prefetcher.relList.supports && prefetcher.relList.supports("prefetch");
-const isDataSaverEnabled = navigator.connection && navigator.connection.saveData;
-const allowQueryString = "instantAllowQueryString" in document.body.dataset;
-const allowExternalLinks = "instantAllowExternalLinks" in document.body.dataset;
-
-if (isSupported && !isDataSaverEnabled) {
-    prefetcher.rel = "prefetch";
-    document.head.appendChild(prefetcher);
-
-    const eventListenersOptions = {
-        capture: true,
-        passive: true,
-    };
-    document.addEventListener("touchstart", touchstartListener, eventListenersOptions);
-    document.addEventListener("mouseover", mouseoverListener, eventListenersOptions)
-}
-
-function touchstartListener(event) {
-    /* Chrome on Android calls mouseover before touchcancel so `lastTouchTimestamp`
-     * must be assigned on touchstart to be measured on mouseover. */
-    lastTouchTimestamp = performance.now();
-
-    const linkElement = event.target.closest("tr[data-href]");
-
-    if (!isPreloadable(linkElement)) {
-        return
-    }
-
-    linkElement.addEventListener("touchcancel", touchendAndTouchcancelListener, {passive: true});
-    linkElement.addEventListener("touchend", touchendAndTouchcancelListener, {passive: true});
-
-    urlToPreload = window.location.href + linkElement.getAttribute("data-href");
-    preload(urlToPreload)
-}
-
-function touchendAndTouchcancelListener() {
-    urlToPreload = undefined;
-    stopPreloading()
-}
-
-function mouseoverListener(event) {
-    if (performance.now() - lastTouchTimestamp < 1100) {
-        return
-    }
-
-    const linkElement = event.target.closest("tr[data-href]");
-
-    if (!isPreloadable(linkElement)) {
-        return
-    }
-
-    linkElement.addEventListener("mouseout", mouseoutListener, {passive: true});
-
-    urlToPreload = window.location.href + linkElement.getAttribute("data-href");
-
-    mouseoverTimer = setTimeout(() => {
-        preload(urlToPreload);
-        mouseoverTimer = undefined
-    }, 65)
-}
-
-function mouseoutListener(event) {
-    if (event.relatedTarget && event.target.closest("tr[data-href]") === event.relatedTarget.closest("tr[data-href]")) {
-        return
-    }
-
-    if (mouseoverTimer) {
-        clearTimeout(mouseoverTimer);
-        mouseoverTimer = undefined
-    } else {
-        urlToPreload = undefined;
-        stopPreloading()
-    }
-}
-
-function isPreloadable(linkElement) {
-    if (!linkElement || !(window.location.href + linkElement.getAttribute("data-href"))) {
-        return
-    }
-
-    if (urlToPreload === window.location.href + linkElement.getAttribute("data-href")) {
-        return
-    }
-
-    const preloadLocation = new URL(window.location.href + linkElement.getAttribute("data-href"));
-
-    if (!allowExternalLinks && preloadLocation.origin !== location.origin && !("instant" in linkElement.dataset)) {
-        return
-    }
-
-    if (!["http:", "https:"].includes(preloadLocation.protocol)) {
-        return
-    }
-
-    if (preloadLocation.protocol === "http:" && location.protocol === "https:") {
-        return
-    }
-
-    if (!allowQueryString && preloadLocation.search && !("instant" in linkElement.dataset)) {
-        return
-    }
-
-    if (preloadLocation.hash && preloadLocation.pathname + preloadLocation.search === location.pathname + location.search) {
-        return
-    }
-
-    if ("noInstant" in linkElement.dataset) {
-        return
-    }
-
-    return true
-}
-
-function preload(url) {
-    prefetcher.href = url
-}
-
-function stopPreloading() {
-    prefetcher.removeAttribute("href")
-}