Http decode url8/17/2023 Simply put: it must also be percent-encoded (as %25). Strictly speaking, while the percent character ( %) isn't reserved, it nonetheless serves as a special indicator for percent-encoded bytes (and therefore requires special handling). For instance, %23 is the percent-encoding for the binary octet 00100011, which in US-ASCII, corresponds to the character #. In percent-encoding, each byte is encoded as a character triplet that consists of the percent character % followed by the two hexadecimal digits that represent the byte numeric value. To encode reserved characters, we use the percent-encoding scheme. We resolve such ambiguities by encoding reserved characters differently when used as data when used as delimiters, we encode them as-is. Does this URL point to an anchor #bar inside resource /foo, or it points to a resource /foo#bar, that is, a resource whose name contains character #? Without URL encoding it would be impossible to tell. We cannot use reserved character as-is, because this would create ambiguous URIs. The following is the list of all reserved characters: ! # $ & ' ( ) * +, / : = ?. Reserved characters, on the other hand, are characters that may delimit the URI into sub-components: characters such as / # & and others. These include uppercase and lowercase letters ( A-Z, a-z), decimal digits ( 0-9), hyphen ( -), period (. Unreserved characters are characters that have no special meaning they can be displayed as-is and require no special handling. In general, a URI can contain characters that are either reserved or unreserved. The encoding exists because URLs and HTTP request parameters often contain characters (or other data) that cannot be represented with the limited set of US-ASCII characters (i.e. The standard allows the use of arbitrary data inside a Uniform Resource Identifier (a URI typically a URL) while using only a narrow set of US-ASCII characters. URL encoding is an encoding format used in URLs. What Is URL (Uniform Resource Identifier) Encoding? Definition
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