{"id":89848,"date":"2020-07-26T19:42:13","date_gmt":"2020-07-26T17:42:13","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-chrome-dobavlena-podderzhka-otlozhennoj-zagruzki-iframe-blokov"},"modified":"2020-07-26T19:42:13","modified_gmt":"2020-07-26T17:42:13","slug":"v-chrome-dobavlena-podderzhka-otlozhennoj-zagruzki-iframe-blokov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/v-chrome-dobavlena-podderzhka-otlozhennoj-zagruzki-iframe-blokov","title":{"rendered":"O Chrome agora suporta o carregamento adiado de blocos iframe","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Desenvolvedores do navegador Chrome informaram<\/a><\/noindex> sobre a extens\u00e3o de recursos para o carregamento diferido de elementos de p\u00e1ginas da web, que permite n\u00e3o carregar conte\u00fado que est\u00e1 fora da \u00e1rea vis\u00edvel, at\u00e9 que o usu\u00e1rio role a p\u00e1gina para a posi\u00e7\u00e3o imediatamente anterior ao elemento. Anteriormente, no Chrome 76 e no Firefox 75, esse modo j\u00e1 havia sido implementado para imagens. Agora, os desenvolvedores do Chrome deram mais um passo e adicionaram a possibilidade de carregamento diferido de blocos iframe.<\/p>\n

Para gerenciar o carregamento diferido de p\u00e1ginas, foi adicionado ao tag o atributo \"loading\", que pode aceitar os valores \"lazy\" (adiar o carregamento), \"eager\" (carregar imediatamente) e \"auto\" (adiar o carregamento a crit\u00e9rio do navegador, quando o modo est\u00e1 ativado Lite<\/a><\/noindex>). Espera-se que o carregamento diferido reduza o consumo de mem\u00f3ria, diminua o tr\u00e1fego e aumente a velocidade de abertura inicial das p\u00e1ginas. Por exemplo, ao ativar o novo modo, blocos de an\u00fancios e widgets do Twitter, Facebook e YouTube deixar\u00e3o de ser carregados imediatamente se n\u00e3o estiverem vis\u00edveis para o usu\u00e1rio, at\u00e9 que o usu\u00e1rio role a p\u00e1gina para a posi\u00e7\u00e3o antes desses blocos. <\/p>\n

\"O<\/a><\/noindex><\/center><\/p>\n

Segundo os desenvolvedores, em m\u00e9dia, o carregamento diferido pode economizar 2-3% de tr\u00e1fego, reduzir o n\u00famero de renderiza\u00e7\u00f5es iniciais<\/a><\/noindex> em 1-2% e diminuir o atraso antes da disponibilidade de entrada<\/a><\/noindex> em 2%. Para sites espec\u00edficos, as mudan\u00e7as s\u00e3o mais vis\u00edveis. Por exemplo, ativar o carregamento diferido do bloco do YouTube resultar\u00e1 em uma redu\u00e7\u00e3o de aproximadamente 500KB de dados carregados, Instagram \u2014 100KB, Spotify \u2014 500KB, Facebook \u2014 400KB. Em particular, a aplica\u00e7\u00e3o do carregamento diferido para blocos do YouTube no site Chrome.com permitiu reduzir em at\u00e9 10 segundos o tempo de espera at\u00e9 a disponibilidade das p\u00e1ginas para intera\u00e7\u00e3o em dispositivos m\u00f3veis e economizar 511KB no tamanho do c\u00f3digo JavaScript inicialmente carregado. <\/p>\n

\"O<\/a><\/noindex><\/center><\/p>\n

<\/a><\/noindex><\/p>\n

Fonte: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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