HTML5 Security Analysis: Local Storage
In the previous article HTML5 cross-origin message sending security analysis, we discussed cross-origin message transmission in html5. This article will show you another feature-local storage.Local StorageLocal storage is also one of the new HTML5 features. It was first on Mozilla
My project 9 uploads values between webpages 2 HTML5 local storage, html5
In my Project 1, I wrote about transferring values between webpages, but that method won't be passed in andriod4.0 or earlier versions, So I caught up with the attention of HTML5 local storage. You can see what the code means:
Send data page:
R
In html5, we provide a local cache mechanism, which will replace our cookies, and it will not be sent with the browser. Our server-side html5 cache mainly includes localStorage, and sessionStorage. For details, please refer to this article. In html5, we provide a local cache mechanism, which will replace our cookies and will not send our servers with the browser. We can use js to operate the
= "website name:" + localstorage.sitename;Instance parsing:Create a Localstorage key/value pair using key= "sitename" and value= "old cat teacher". Retrieves the value of the key value "sitename" and then inserts the data into the element id= "result"Sessionstorage ObjectThe Sessionstorage method stores data for a session. When the user closes the browser window, the data is deleted.How to create and access a sessionstorage:if (sessionstorage.clickcount) {sessionstorage.clickcount=number (Sessio
Describes how Localstorage (local storage) is used. This includes operations such as adding, modifying, deleting, and triggering events on the storage object.Directory1. Introduction1.1 Description1.2 Features1.3 Browser Minimum version support1.4 Fit Scene2. Members2.1 Properties2.2 Methods2.3 Events3. Example3.1 Storing data3.2 reading data3.3 Storing JSON obje
locally. The specific code of the save Function in js is as follows:
Copy the content to the clipboard using JavaScript Code
Function save (){
Var mobilePhone = document. getElementById ("mobilephone"). value;
Var userName = dpcument. getElementById ("username"). value;
LocalStorage. setItem (mobilePhone, userName );
}
The logic of the Save function is very simple, that is, to extract the value entered by the user, and then store the
Local Storage is implemented under the ionic framework of AngularJS, and angularjsionic
Preface:
Our front-end uses ionic + AngularJS, and uses hybrid mobile applications. Recently, When I slide over page A, I jump to page B and page B needs to load the data of page A. How can I transfer the value of this page? LocalStorage is used for local
Directory:
0--Overview of the 0.Chrome extended development (Gmail Accessory Management Assistant) series
One of the 1.Chrome extension development file structures for--chrome extensions
2.Chrome Extended Development--chrome The script's operation mechanism and communication mode in the extension
3.Chrome extension Development data local storage and download in the three--chrome extensi
In HTML5 local storage--web SQL database mentions that the WEB SQL database has actually been deprecated, while HTML5 's supported local storage actually becomes
Web Storage (local Storage
In addition to the canvas elements, HMTL5 is another very important feature that can be used to store the database's Web Storage locally on the client. This article describes the Web Storage and sqllite operations.Web storage are divided into two categories:-Sessionstorage: data is saved in Session object (temporary)-Localstorage: data is stored on the
(getlocalkey ("stmobilecrlist "));
Crfilter = JSON. parse (crfilter );
2) complex data (SQL)
Currently, browsers on many platforms also have built-in databases and expose interfaces for use based on HTML5 web SQL database APIs. The support conditions are not as good as Web storage. We can see that they cannot be applied on ie10, this causes a problem on WP.
3) binary file)
To store files, you need to access the
Parse the new features in HTML5: Local Storage and html5localstorage
Html5 local storage stores data locally through a browser.The basic usage is as follows:Copy the content to the clipboard using JavaScript Code
In this way, the data is saved locally, but in what form
Localstorage, like Sessionstorage, are objects that store client-side temporary information, and they can only store objects of a string type.The localstorage life cycle is permanent, which means that the information will always be present unless the user displays the Localstorage information on the UI provided by the browser .Sessionstorage life cycle is the current window or tab, once the window or tab is permanently closed, all data stored through sessionstorage is emptied.PS: Different brows
The local storage in chrome is also used in HTML5 localstorage, the only difference is that the Chrome extension has its own localstorage, which belongs to this extension and not to a domain name. This is a good thing to do. Expand some of your data without being affected by the sites and domain names you visit.Localstorage FoundationLocalstorage is a HTML5 feature, so some browsers don't necessarily suppor
Procedures and considerations for adding local storage for VMware ESXi hosts-2Category "Authoring type: Original"; Network Technology2 adding hardware to the server and re-planning RAID2.1 adding RAID cards and hard drivesWhen the host shuts down, unplug the power cord, put on the IBM server random anti-static gloves, open the server chassis, in the upper right corner of the server chassis, plug in the RAID
difference is that it retrieves data rather than setting data. Like tlssetvalue, this function first checks whether the TLS index value is valid. If yes, tlsgetvalue uses this index value to find the corresponding data item of the 64 Dwords array (located in thread database) and return its content.(4) tlsfree
This function erased all efforts of tlsalloc and tlssetvalue. Tlsfree first checks whether the index value you submit to it has been configured
. Behavior = "URL ('# default # userdata ')";
Document. Body. appendchild (O );
Userdata provides the following attributes and methods:
AttributeExpires setting or read expiration timeXmldocument reads the xml dom of an object
MethodGetattribute reads the value of a specified attributeLoad Open FileRemoveattribute: deletes a specified attribute.Save save fileSetattribute: assigns a value to a specified attribute.
5. directory restrictionsLocalstorage cannot be accessed across regions, while
The local storage in chrome is also used in HTML5 localstorage, the only difference is that the Chrome extension has its own localstorage, which belongs to this extension and not to a domain name. This is a good thing to do. Expand some of your data without being affected by the sites and domain names you visit.Localstorage FoundationLocalstorage is a HTML5 feature, so some browsers don't necessarily suppor
Teach you how to develop chrome extension 1: Developing chrome extenstion is actually very simple
Teach you how to develop chrome extension 2: Add behavior for HTML
How to Develop chrome extension 3: about local storage data
Localstorage in HTML5
Localstorage is similar to Cookie. It is the data stored in the client browser. It is different from Cookie because it has no time limit. Localstorage is a new f
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