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location.hash
location.hash is a property in JavaScript that is used to get or set the anchor part of the URL. It can be used to get or set the anchor part of the URL. This topic also provides location.hash related content for everyone to download and use.
location.hash cross-domain solution principleWhen we request resources from a web page in one domain name to another domain name, the browser will send a preflight request to the server to determine whether the server supports cross-domain requests. After the server receives the preflight request, it can determine whether the cross-domain request is allowed based on the request header information. If it is allowed, it will return the corresponding response header, allowing the browser to make the cross-domain request successfully.
Knowledge points on BOM operation in JSGlobal variables and global methods are all assigned to window; if the url parameter in the open method is empty, a new window will be opened but no document will be displayed; location.href returns the complete URL of the current page; location.hash returns #Back.
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