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HTML5 : <!DOCTYPE html> HTML4.* :<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> 规定页面的描述、关键词、文档的作者、最后修改时间以及 阅读全文
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1. Chromium VS Chrome Chromium is an open-source Web browser project started by Google, to provide the source code for the proprietary Google Chrome b 阅读全文
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What Sandbox Do? Sandbox leverages the OS-provided security to allow code execution that cannot make persistent changes to the computer or access info 阅读全文
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HTTPS (HTTP Secure) is an adaptation of the Hypertext Transfer Protocol (HTTP) for secure communication over a computer network, and is widely used on 阅读全文
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Browser vendors needed a way to add support for new features that were not yet standardized, but without messing up later changes or creating incompat 阅读全文
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1. Selector Different types of selectors: Selectors can be divided into the following categories: Simple selectors: Match one or more elements based o 阅读全文
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温故而知新,画了一个思维导图 HTML5 HTML5 is the fifth revision and newest version of the HTML standard. It offers new features that provide not only rich media supp 阅读全文
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1. Client browser short polling The most simple solution, client use Ajax to sends a request to the server in a short period circle, the server return 阅读全文
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HTTP1.1 Disadvantages One open request per connection Duplication of data HTTP/2 Advantages Header compression using HPACK Server Push is binary, inst 阅读全文
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An HTTP cookie (web cookie, browser cookie) is a small piece of data that a server sends to the user's web browser. The browser may store it and send 阅读全文
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Request & Response header details can be found here The request method indicates the method to be performed on the resource identified by the Request- 阅读全文
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First Authentication and Authorization are different two concept. Http Base Auth Put user name and password in header which in base64 encoding. HTTP D 阅读全文
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HTTP session: sequence of network request-response transactions HTTP is a stateless protocol. A stateless protocol does not require the HTTP server to 阅读全文
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Refer from:https://en.wikipedia.org/wiki/List_of_HTTP_header_fields Mark here for search Request fields Must not be used with HTTP/2. Connection: Upgr 阅读全文
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Uniform Resource Identifier (URI): compact sequence of characters that identifies an abstract or physical resource.Syntax: URI = scheme ":" hier-part 阅读全文
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Webkit: up to version 27 Blink: 28+ Comparation of Layout Engine for CSS CSS2/CSS3 1. Grammar and rules 2. Selectors 3. Properties 4. Values and units 阅读全文