Update Chrome App

Our goal is for expansions and applications to update automatically for the same reason as Google Chrome itself: integrate fixed bugs and exploits, integrate new functionality or improvements in usability, and enhance our interface.

When publishing via the Chrome Developer Dashboard, you can choose to skip this page. Using the Dashboard, you can share updates with both your Chrome Web users and the Chrome Web store. For more information about running a different hosting than the shop, read on. Starting with M33, Windows Stable/Beta Channel endpoints will only be able to browse extension downloads if they are hosted on the Chrome Web Store (see How to Protect Windows Endpoints from Bad Extensions).

Until now, when supporting off-store enhancements, it was possible to update the original files and the enhancement in the locking state. Enhancements that are hosted on the Chrome Web Store, however, are upgraded through the Chrome update mechanisms, which are not controlled by the developer. When upgrading file dependent file dependent file based applications (e.g. NPAPI based inheritance extensions), you should be wary of this.

Manifests can contain an "update_url" box that points to a place for performing update checking. Contents returning from an update validation are an XML file with an update manifest that contains the latest release of an enhancement. Each few hrs the web browsers scans if there is an updateURL on installed expansions or applications.

Each of them sends a query to this address, looking for an update Manifesto update XML for it. When the update Manifesto refers to a more recent release than the current release, the web browsers download and install the new release. Just as with manually updated files, the new criminal files must be autographed with the same privat keys as the currently loaded one.

Please note: To protect users' privacy, Google Chrome does not automatically submit cookie header with updated manifest requirements and will ignore all set cookie header answers to these queries. When you host your own extensions or apps, you need to include the update_url box in your Manifesto. This is a simple example of a configuration that you can use to create a template. jumpon file:

"Name." "My extension." "<font color="#ffff00">-=http://myhost.com/mytestextension/updates.=- proudly presents Updating Manifesto should be an HTML file that looks like this (highlights indicate parts you should change): 1.0''UTF-8''http://www.google. com/update2/response''2. 0'''''''''''' This file is taken from the Omaha file from Google's update structure.

For the and items of the update manifest, satisfies the following attributes: Enhancement or App ID created on the basis of a publicly held public key hatch, as described in Packing. To find the ID of an expansion or chrome app, go to the page expansions (chrome://extensions).

However, it is not possible to list applications hosting on the Enhancements page. This should be the value of "version" in the Manifesto of the . crex files. It should be the same as the value of "version" in the . crex files. vson files. Information about several enhancements can be contained in the update manifest update XML by containing several items. Updating is checked several times by default, but you can enforce an update by using the Update enhancements now buttons on the Enhancements page.

Built to make server-side work as simple as placing a fixed format HTML document on a normal web page such as Apache, the fundamental auto-update feature is to update this HTML document as you publish new releases of your enhancements. Intermediate users can take full benefit of the fact that we are adding parameter to the update manifold requirement to specify the enhancement ID and revision.

They can then use the same update url for all their enhancements and point to a dynamic host-side executable instead of a fixed HTML document. This is the query parameter format: Suppose you have two extension files that both point to the same update url (http://test.com/extension_updates.php):

"The invitation to update each enlargement is "0. 4": You can list more than one expansion in a query for each update URL. In the example above, if a particular end users has both enhancements in place, the two requirements are combined into a common job: When the number of existing expansions that use the same update url is large enough that a GET requirement is too long (over 2000 chars or so), the update validation will output extra GET requirements as needed.

Notice: In case of several GET queries in the near term, a POST query with the requirement parameter in the POST bodyshell can be output. Since we are adding more extensions system APIs, it is possible that you may want to publish an upgraded copy of an enhancement or application that only works with newer browsers.

Although Google Chrome itself is automatically upgraded, it may take a few working days for most users to update to a certain new one. In order to make sure that a certain update is only valid for Google Chrome releases above a certain level, please app> in your update manifesto include the property "prodversionmin" in the -item.

this would make sure that the user only upgrades to 2 when using Google Chrome 3.0.193.