{"id":113100,"date":"2024-01-24T17:28:01","date_gmt":"2024-01-24T15:28:03","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-web-brauzera-chrome-121"},"modified":"2024-01-24T17:28:01","modified_gmt":"2024-01-24T15:28:03","slug":"vypusk-web-brauzera-chrome-121","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-web-brauzera-chrome-121","title":{"rendered":"Verze webov\u00e9ho prohl\u00ed\u017ee\u010de Chrome 121","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Spole\u010dnost Google zve\u0159ejnila verzi webov\u00e9ho prohl\u00ed\u017ee\u010de Chrome 121. Sou\u010dasn\u011b je k dispozici stabiln\u00ed verze otev\u0159en\u00e9ho projektu Chromium, na jeho\u017e z\u00e1klad\u011b Chrome funguje. Prohl\u00ed\u017ee\u010d Chrome se od Chromia li\u0161\u00ed pou\u017e\u00edv\u00e1n\u00edm logotyp\u016f Google, p\u0159\u00edtomnost\u00ed syst\u00e9mu zas\u00edl\u00e1n\u00ed notifikac\u00ed v p\u0159\u00edpad\u011b p\u00e1du, moduly pro p\u0159ehr\u00e1v\u00e1n\u00ed chr\u00e1n\u011bn\u00e9ho obsahu (DRM), syst\u00e9mem automatick\u00e9ho instalov\u00e1n\u00ed aktualizac\u00ed, trval\u00fdm zapnut\u00edm Sandbox izolace, dod\u00e1vkou kl\u00ed\u010d\u016f k Google API a p\u0159enosem parametru RLZ p\u0159i vyhled\u00e1v\u00e1n\u00ed. Pro ty, kte\u0159\u00ed pot\u0159ebuj\u00ed v\u00edce \u010dasu na aktualizaci, je dostupn\u00e1 samostatn\u00e1 v\u011btev Extended Stable, kter\u00e1 je podporov\u00e1na po dobu 8 t\u00fddn\u016f. Dal\u0161\u00ed verze Chrome 122 je napl\u00e1nov\u00e1na na 20. \u00fanora.     <\/p>\n<p>Hlavn\u00ed zm\u011bny v Chrome 121:  <\/p>\n<ul>\n<li class=\"l\"> Bylo p\u0159id\u00e1no n\u011bkolik experiment\u00e1ln\u00edch funkc\u00ed vyu\u017e\u00edvaj\u00edc\u00edch strojov\u00e9 u\u010den\u00ed, kter\u00e9 budou zpo\u010d\u00e1tku dostupn\u00e9 u\u017eivatel\u016fm sestaven\u00ed pro Windows a macOS z USA. Do konfigur\u00e1toru byla p\u0159id\u00e1na sekce \u201eExperimental AI.\u201c\n<ul>\n<li class=\"l\"> Re\u017eim inteligentn\u00edho seskupov\u00e1n\u00ed karet (Tab Organizer), kter\u00fd automaticky spojuje otev\u0159en\u00e9 karty s podobnou tematikou do skupin a navrhuje vhodn\u00e1 jm\u00e9na a emoji pro nov\u00e9 skupiny. Nap\u0159\u00edklad pokud je otev\u0159eno n\u011bkolik karet s informacemi o cestov\u00e1n\u00ed a n\u00e1kupech v internetov\u00fdch obchodech, nov\u00e1 funkce umo\u017en\u00ed bez ru\u010dn\u00edho t\u0159\u00edd\u011bn\u00ed seskupit str\u00e1nky do odpov\u00eddaj\u00edc\u00edch skupin. Seskupen\u00ed se aktivuje prost\u0159ednictv\u00edm menu pro spr\u00e1vu karet nebo mo\u017enosti \u201eOrganize Similar Tabs\u201c v kontextov\u00e9m menu karty.      <center>  <video poster=\"\" controls=\"\" style=\"width: 700px; height: 400px; max-width:100%\"><source src=\"  https:\/\/storage.googleapis.com\/gweb-uniblog-publish-prod\/original_videos\/MP4_Tab_Organizer_Chrome.mp4\" type=\"video\/mp4\"><\/video>  <\/center>\n<li class=\"l\"> Gener\u00e1tor motiv\u016f, kter\u00fd na z\u00e1klad\u011b textov\u00e9ho popisu zadan\u00e9ho u\u017eivatelem v p\u0159irozen\u00e9m jazyce personalizuje vzhled prohl\u00ed\u017ee\u010de. Nap\u0159\u00edklad lze popsat po\u017eadovanou tematiku, n\u00e1ladu, styl a barvu, po \u010dem\u017e prohl\u00ed\u017ee\u010d s\u00e1m vytvo\u0159\u00ed odpov\u00eddaj\u00edc\u00ed motiv. Rozhran\u00ed pro generov\u00e1n\u00ed motiv\u016f lze vyvolat kliknut\u00edm na tla\u010d\u00edtko \u201eCreate with AI\u201c na str\u00e1nce \u201eCustomize Chrome\/Change theme.\u201c      <center>  <video  controls=\"\" style=\"width: 700px; height: 400px; max-width:100%\"><source src=\"https:\/\/storage.googleapis.com\/gweb-uniblog-publish-prod\/original_videos\/MP4_Create-Themes_Inline.mp4\" type=\"video\/mp4\"><\/video>  <\/center>\n<li class=\"l\"> Interaktivn\u00ed asistent, kter\u00fd umo\u017e\u0148uje vygenerovat text na t\u00e9ma zadan\u00e9 u\u017eivatlem. Nap\u0159\u00edklad pomoc\u00ed nov\u00e9 funkce lze p\u0159ipravit dlouh\u00fd a zdvo\u0159il\u00fd dotaz nebo koment\u00e1\u0159, pokud u\u017eivatel zad\u00e1 jednoduchou textovou \u0161ablonu. Asistent se aktivuje kliknut\u00edm na tla\u010d\u00edtko \u201eHelp me write\u201c v kontextov\u00e9m menu, kter\u00e9 se zobrazuje u pol\u00ed v zad\u00e1vac\u00edch formul\u00e1\u0159\u00edch.    <center><img decoding=\"async\" alt=\"Verze webov\u00e9ho prohl\u00ed\u017ee\u010de Chrome 121\" src=\"\/wp-content\/uploads\/2024\/01\/844cac56002c6ddea9c93bdc7cd316a4.gif\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/ul>\n<li class=\"l\"> Pro 1 % u\u017eivatel\u016f prohl\u00ed\u017ee\u010de byla vypnuta podpora t\u0159et\u00edch stran cookies, kter\u00e9 se nastavuj\u00ed p\u0159i n\u00e1v\u0161t\u011bv\u011b str\u00e1nek r\u016fzn\u00fdch od <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/domain\/\"   title=\"dom\u00e9ny\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4129\">dom\u00e9ny<\/a> aktu\u00e1ln\u00ed str\u00e1nky. Takov\u00e9 Cookie se pou\u017e\u00edvaj\u00ed ke sledov\u00e1n\u00ed pohyb\u016f u\u017eivatele mezi weby v reklamn\u00edch s\u00edt\u00edch, widgetech soci\u00e1ln\u00edch s\u00edt\u00ed a syst\u00e9mech webov\u00e9 analytiky. Zm\u011bny jsou prosazov\u00e1ny v r\u00e1mci iniciativy Privacy Sandbox, kter\u00e1 usiluje o dosa\u017een\u00ed rovnov\u00e1hy mezi pot\u0159ebou u\u017eivatel\u016f chr\u00e1nit si soukrom\u00ed a p\u0159\u00e1n\u00edm reklamn\u00edch s\u00edt\u00ed a web\u016f sledovat preference n\u00e1v\u0161t\u011bvn\u00edk\u016f. Vypnut\u00ed t\u0159et\u00edch stran Cookie se pl\u00e1nuje postupn\u011b roz\u0161i\u0159ovat a do 3. \u010dtvrtlet\u00ed 2024 dos\u00e1hnout 100%. Pro vypnut\u00ed ani\u017e by museli \u010dekat na extern\u00ed zm\u011bny je k dispozici nastaven\u00ed \u201echrome:\/\/flags\/#test-third-party-cookie-phaseout\u201c.\n<li class=\"l\"> P\u0159i zapnut\u00ed standardn\u00ed ochrany prohl\u00ed\u017ee\u010de (Bezpe\u010dn\u00e9 prohl\u00ed\u017een\u00ed &gt; Standardn\u00ed ochrana) je implementov\u00e1no testov\u00e1n\u00ed bezpe\u010dnosti stahov\u00e1n\u00ed \u0161ifrovan\u00fdch archiv\u016f. Po sta\u017een\u00ed archivu prohl\u00ed\u017ee\u010d po\u017eaduje od u\u017eivatele heslo pro de\u0161ifrov\u00e1n\u00ed archivu, po\u010d\u00edt\u00e1 hash soubor\u016f obsa\u017een\u00fdch v archivu a odes\u00edl\u00e1 hashe na servery Google k ov\u011b\u0159en\u00ed na p\u0159\u00edtomnost \u0161kodliv\u00fdch komponent.\n<li class=\"l\"> Pro \u010d\u00e1st u\u017eivatel\u016f byla jako experiment zm\u011bn\u011bna chov\u00e1n\u00ed p\u0159i p\u0159echodech na odkazy souvisej\u00edc\u00ed s nainstalovan\u00fdmi aplikacemi PWA. Po kliknut\u00ed na odkaz se u t\u011bchto u\u017eivatel\u016f okam\u017eit\u011b otev\u0159e odd\u011blen\u00e9 rozhran\u00ed aplikac\u00ed nebo se zobraz\u00ed seznam aplikac\u00ed podporuj\u00edc\u00edch typ obsahu v odkazu. V z\u00e1vislosti na v\u00fdsledc\u00edch experimentu se rozhodne o p\u0159enosu v\u0161ech u\u017eivatel\u016f Chrome 123 na nov\u00e9 chov\u00e1n\u00ed nebo o ponech\u00e1n\u00ed star\u00e9 metody zpracov\u00e1n\u00ed, kdy se odkaz otev\u00edr\u00e1 na b\u011b\u017en\u00e9 kart\u011b, ale v adresn\u00edm \u0159\u00e1dku se zobraz\u00ed tla\u010d\u00edtko pro p\u0159echod k odd\u011blen\u00e9 aplikaci. Pro testov\u00e1n\u00ed nov\u00e9ho chov\u00e1n\u00ed byla navr\u017eena nastaven\u00ed &#171;chrome:\/\/flags\/#enable-user-link-capturing-pwa&#187;.\n<li class=\"l\"> Z hlavi\u010dky bo\u010dn\u00edho panelu byla odstran\u011bna ikona aktivace panelu, m\u00edsto kter\u00e9 se doporu\u010duje pou\u017e\u00edvat funkce p\u0159ichyt\u00e1v\u00e1n\u00ed prvk\u016f z hlavn\u00edho panelu a vyvol\u00e1n\u00ed mo\u017enost\u00ed bo\u010dn\u00edho panelu z hlavn\u00edho menu.     <center><img decoding=\"async\" alt=\"Verze webov\u00e9ho prohl\u00ed\u017ee\u010de Chrome 121\" src=\"\/wp-content\/uploads\/2024\/01\/dd5244ae10577da93f9b9bad858ef0d3.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> Byla povolena zku\u0161ebn\u00ed verze Deprecation pro testov\u00e1n\u00ed pl\u00e1novan\u00e9ho ignorov\u00e1n\u00ed zpracovatel\u016f ud\u00e1losti &#171;unload&#187;, kter\u00e9 neumo\u017e\u0148uj\u00ed efektivn\u00ed vyu\u017e\u00edv\u00e1n\u00ed cache p\u0159echodu (BFCache \u2014 cache p\u0159echod\u016f dop\u0159edu a dozadu), kter\u00e1 zaji\u0161\u0165uje okam\u017eit\u00fd p\u0159echod p\u0159i pou\u017e\u00edv\u00e1n\u00ed tla\u010d\u00edtek &#171;Zp\u011bt&#187; a &#171;Dop\u0159edu&#187; nebo p\u0159i navigaci po d\u0159\u00edve prohl\u00ed\u017een\u00fdch str\u00e1nk\u00e1ch aktu\u00e1ln\u00edho webu. Chov\u00e1n\u00ed stacion\u00e1rn\u00edho Chrome bude p\u0159ibl\u00ed\u017eeno mobiln\u00edm prohl\u00ed\u017ee\u010d\u016fm, kter\u00e9 ve v\u011bt\u0161in\u011b p\u0159\u00edpad\u016f negeneruj\u00ed ud\u00e1lost &#171;unload&#187;, co\u017e d\u00e1v\u00e1 p\u0159ednost cache p\u0159echod\u016f.\n<li class=\"l\"> Ve verzi pro platformu Android na za\u0159\u00edzen\u00edch s Android 12+ a GPU Qualcomm nebo ARM je ve v\u00fdchoz\u00edm nastaven\u00ed povolena podpora API WebGPU, kter\u00e9 poskytuje rozhran\u00ed podobn\u00e9 Vulkan, Metal a Direct3D 12 pro prov\u00e1d\u011bn\u00ed operac\u00ed na stran\u011b GPU, jako je renderov\u00e1n\u00ed a v\u00fdpo\u010dty, a tak\u00e9 umo\u017e\u0148uje pou\u017e\u00edvat jazyk st\u00ednov\u00e1n\u00ed.\n<li class=\"l\"> V CSS bylo implementov\u00e1no d\u011bd\u011bn\u00ed vlastnost\u00ed pseudot\u0159\u00edd pro zv\u00fdrazn\u011bn\u00ed prvk\u016f, jako jsou &#171;::selection&#187; a &#171;::highlight&#187;, ve vazb\u011b na pseudoelementy rodi\u010dovsk\u00e9ho prvku.    <center><div class=\"youtube-placeholder\" data-id=\"UiZiYJvn3Dc\" onclick=\"loadVideo(this)\">\r\n        <img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/UiZiYJvn3Dc\/hqdefault.jpg\" alt=\"P\u0159ehr\u00e1t video\" loading=\"lazy\" width=\"480\" height=\"360\" style=\"width:100%;height:auto;\">\r\n        <div class=\"play-button\"><\/div>\r\n    <\/div><\/center>\n<li class=\"l\"> V CSS vlastnosti font-palette, umo\u017e\u0148uj\u00edc\u00ed v\u00fdb\u011br palety pro vykreslov\u00e1n\u00ed barevn\u00e9ho p\u00edsma, byla p\u0159id\u00e1na podpora animace. Animace m\u016f\u017ee b\u00fdt pou\u017eita pro plynul\u00fd p\u0159echod z jedn\u00e9 palety na druhou v barevn\u00fdch p\u00edsmenech.\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora CSS vlastnost\u00ed &#171;scrollbar-color&#187; a &#171;scrollbar-width&#187; pro nastaven\u00ed barvy a \u0161\u00ed\u0159ky posuvn\u00edku.\n<li class=\"l\"> V CSS byly p\u0159id\u00e1ny pseudoelementy &#171;::spelling-error&#187; a &#171;::grammar-error&#187; pro nastaven\u00ed barevn\u00e9ho proveden\u00ed a dekoraci indikace syntaktick\u00fdch a gramatick\u00fdch chyb.\n<li class=\"l\"> Byla implementov\u00e1na mo\u017enost pou\u017eit\u00ed v\u00fdrazu supports() pro importov\u00e1n\u00ed styl\u016f a vrstev CSS po spln\u011bn\u00ed ur\u010dit\u00fdch podm\u00ednek.\n<li class=\"l\"> V CSS byla p\u0159id\u00e1na podpora masek v SVG, umo\u017e\u0148uj\u00edc\u00ed skr\u00fdt \u010d\u00e1sti obsahu pomoc\u00ed p\u0159ekr\u00fdv\u00e1n\u00ed obr\u00e1zku podle ur\u010dit\u00fdch bod\u016f. Pro nastaven\u00ed masek lze pou\u017e\u00edt vlastnosti mask, mask-mode, mask-composite, mask-position a mask-repeat. Tak\u00e9 pro SVG je povoleno na\u010d\u00edt\u00e1n\u00ed masek z extern\u00edch <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/cs\/server\/\"   title=\"servery\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1524\">servery<\/a>, nap\u0159\u00edklad, &#187; mask: url(masks.svg#star).\n<li class=\"l\"> Byla roz&scaron;&iacute;\u0159ena podpora spekulativn&iacute;ch pravidel (API Speculation rules), kter&aacute; umo\u017e\u0148uj&iacute; autor\u016fm webov&yacute;ch str&aacute;nek p\u0159edat prohl&iacute;\u017ee\u010di informace o nejpravd\u011bpodobn\u011bj&scaron;&iacute;ch str&aacute;nk&aacute;ch, na kter&eacute; m\u016f\u017ee u\u017eivatel p\u0159ej&iacute;t. Prohl&iacute;\u017ee\u010d tuto informaci vyu\u017e&iacute;v&aacute; k proaktivn&iacute;mu na\u010d&iacute;t&aacute;n&iacute; a vykreslov&aacute;n&iacute; obsahu str&aacute;nek. V nov&eacute; verzi je mo\u017en&eacute; p\u0159ed&aacute;vat pravidla prost\u0159ednictv&iacute;m HTTP hlavi\u010dky Speculation-Rules a byla p\u0159id&aacute;na podpora roz&scaron;&iacute;\u0159en&eacute; syntaxe (&bdquo;document rules&ldquo;), kter&aacute; umo\u017e\u0148uje prohl&iacute;\u017ee\u010di ur\u010dit seznam URL pro spekulativn&iacute; na\u010d&iacute;t&aacute;n&iacute; z prvk\u016f &lt;a&gt; na str&aacute;nce.\n<li class=\"l\"> Bylo p\u0159id\u00e1no experiment\u00e1ln\u00ed (origin trial) API Element Capture, kter\u00e9 umo\u017e\u0148uje p\u0159i zachycov\u00e1n\u00ed videa z\u00fa\u017eit z\u00e1b\u011br na jednotliv\u00e9 \u010d\u00e1sti DOM a prvky. Nap\u0159\u00edklad v aplikac\u00edch pro videokonference nov\u00e9 API umo\u017e\u0148uje vlo\u017een\u00ed extern\u00edch aplikac\u00ed do iframe a zaji\u0161t\u011bn\u00ed p\u0159enosu videa s obsahem tohoto iframe ostatn\u00edm \u00fa\u010dastn\u00edk\u016fm.\n<li class=\"l\"> V API dokumentu Picture-in-Picture je nyn\u00ed pro pou\u017eit\u00ed metod resizeBy() a resizeTo() vy\u017eadov\u00e1no potvrzen\u00ed u\u017eivatele.\n<li class=\"l\"> Byla p\u0159id\u00e1na mo\u017enost pou\u017e\u00edvat metodu showPicker s prvky  pro programov\u00e9 vol\u00e1n\u00ed implementace rozbalovac\u00edho menu poskytovan\u00e9ho prohl\u00ed\u017ee\u010dem.\n<li class=\"l\"> V API Media Capabilities byly do decodingInfo() p\u0159id\u00e1ny nov\u00e1 pole hdrMetadataType, colorGamut a transferFunction, kter\u00e1 lze pou\u017e\u00edt k ur\u010den\u00ed podpory HDR.\n<li class=\"l\"> V TLS byla p\u0159id\u00e1na podpora mechanismu inkapsulace kl\u00ed\u010d\u016f (KEM, Key Encapsulation Mechanism), kter\u00fd vyu\u017e\u00edv\u00e1 hybridn\u00ed algoritmus X25519Kyber768 odoln\u00fd v\u016f\u010di \u00fatok\u016fm kvantov\u00fdmi po\u010d\u00edta\u010di. X25519Kyber768 p\u0159edstavuje kombinaci mechanismu v\u00fdm\u011bny kl\u00ed\u010d\u016f X25519, zalo\u017een\u00e9ho na eliptick\u00fdch k\u0159ivk\u00e1ch a v sou\u010dasnosti pou\u017e\u00edvan\u00e9ho v TLS, a algoritmu Kyber-768, kter\u00fd pou\u017e\u00edv\u00e1 metody kryptografie zalo\u017een\u00e9 na \u0159e\u0161en\u00ed \u00faloh teorie m\u0159\u00ed\u017eek, jejich\u017e doba \u0159e\u0161en\u00ed se neli\u0161\u00ed na b\u011b\u017en\u00fdch a kvantov\u00fdch po\u010d\u00edta\u010d\u00edch.\n<li class=\"l\"> Byly provedeny vylep\u0161en\u00ed n\u00e1stroj\u016f pro webov\u00e9 v\u00fdvoj\u00e1\u0159e. V panelu Elements byla p\u0159id\u00e1na podpora CSS pravidel \u201e@font-palette-values\u201c. Byla vylep\u0161ena podpora source map. Bylo zlep\u0161eno sledov\u00e1n\u00ed interaktivn\u00edch operac\u00ed v panelu pro hodnocen\u00ed v\u00fdkonu. V panelu Sources byly implementov\u00e1ny \u0161t\u00edtky pro p\u0159ehledn\u00e9 zobrazen\u00ed odsazen\u00ed.      <center><img decoding=\"async\" alt=\"Verze webov\u00e9ho prohl\u00ed\u017ee\u010de Chrome 121\" src=\"\/wp-content\/uploads\/2024\/01\/034f8e9aa15cee0f1464d3ace32a4336.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>              <\/ul>\n<p>Krom\u011b novinek a oprav chyb byla v nov\u00e9 verzi odstran\u011bna 17 zranitelnost\u00ed. Mnoho zranitelnost\u00ed bylo identifikov\u00e1no v d\u016fsledku automatizovan\u00e9ho testov\u00e1n\u00ed pomoc\u00ed n\u00e1stroj\u016f AddressSanitizer, MemorySanitizer, Control Flow Integrity, LibFuzzer a AFL. Nebyly zji\u0161t\u011bny \u017e\u00e1dn\u00e9 kritick\u00e9 probl\u00e9my, kter\u00e9 by umo\u017enily obej\u00edt v\u0161echny \u00farovn\u011b ochrany prohl\u00ed\u017ee\u010de a vykonat k\u00f3d v syst\u00e9mu mimo prost\u0159ed\u00ed sandboxu. V r\u00e1mci programu finan\u010dn\u00ed odm\u011bny za nalezen\u00ed zranitelnost\u00ed bylo pro tuto verzi spole\u010dnosti Google vyplaceno 11 odm\u011bn v celkov\u00e9 v\u00fd\u0161i 31 tis\u00edc dolar\u016f (jedna odm\u011bna ve v\u00fd\u0161i 11 tis\u00edc dolar\u016f, 9 tis\u00edc dolar\u016f, 6 tis\u00edc dolar\u016f a 2 tis\u00edce dolar\u016f, a t\u0159i odm\u011bny po 1 tis\u00edci dolar\u016f). V\u00fd\u0161e 4 odm\u011bn zat\u00edm nebyla ur\u010dena. 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