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@ -111,8 +111,10 @@ public class ContactInfo {
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private static final long CACHE_GRAVATAR_DURATION = 2 * 60 * 60 * 1000L; // milliseconds
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private static final long CACHE_FAVICON_DURATION = 2 * 7 * 24 * 60 * 60 * 1000L; // milliseconds
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// https://css-tricks.com/prefetching-preloading-prebrowsing/
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// https://developer.mozilla.org/en-US/docs/Web/Performance/dns-prefetch
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private static final List<String> REL_EXCLUDE = Collections.unmodifiableList(Arrays.asList(
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"dns-prefetch", "preconnect", "prefetch", "preload", "prerender"
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"dns-prefetch", "preconnect", "prefetch", "preload", "prerender", "subresource"
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));
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private ContactInfo() {
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@ -554,7 +556,6 @@ public class ContactInfo {
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List<Future<Bitmap>> futures = new ArrayList<>();
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for (Element img : imgs) {
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// https://developer.mozilla.org/en-US/docs/Web/Performance/dns-prefetch
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String rel = img.attr("rel").trim().toLowerCase(Locale.ROOT);
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if (REL_EXCLUDE.contains(rel)) // dns-prefetch: gmx.net
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continue;
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