Scripts Page
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Content scripts are files that run in the context of web pages. By using the standard Document Object Model (DOM), they are able to read details of the web pages the browser visits, make changes to them, and pass information to their parent extension.
An isolated world is a private execution environment that isn't accessible to the page or other extensions. A practical consequence of this isolation is that JavaScript variables in an extension's content scripts are not visible to the host page or other extensions' content scripts. The concept was originally introduced with the initial launch of Chrome, providing isolation for browser tabs.
Not only does each extension run in its own isolated world, but content scripts and the web page do too. This means that none of these (web page, content scripts, and any running extensions) can access the context and variables of the others.
Statically declared scripts are registered in the manifest under the \"content_scripts\" field. They can include JavaScript files, CSS files, or both. All auto-run content scripts must specify match patterns.
Introduced in Chrome 96, dynamic declarations are similar to static declarations, but the content script object is registered with Chrome using methods in the chrome.scripting namespace rather than in manifest.json. In addition to registering content scripts, the Scripting API also allows extension developers to:
To inject a content script programmatically, your extension needs host permissions for the page it's trying to inject scripts into. Host permissions can either be granted by requesting them as part of your extension's manifest (see host_permissions) or temporarily via activeTab.
Extensions may want to run scripts in frames that are related to a matching frame, but don't themselves match. A common scenario when this is the case is for frames with URLs that were created by a matching frame, but whose URLs don't themselves match the script's specified patterns.
Because this compares the origin of the initiator frame, the initiator frame could be on at any path from that origin. To make this implication clear, Chrome requires any content scripts specified with \"match_origin_as_fallback\" set to true to also specify a path of *.
Although the execution environments of content scripts and the pages that host them are isolated from each other, they share access to the page's DOM. If the page wishes to communicate with the content script, or with the extension via the content script, it must do so through the shared DOM.
The non-extension page, example.html, posts messages to itself. This message is intercepted and inspected by the content script and then posted to the extension process. In this way, the page establishes a line of communication to the extension process. The reverse is possible through similar means.
While isolated worlds provide a layer of protection, using content scripts can create vulnerabilities in an extension and the web page. If the content script receives content from a separate website, such as making an XMLHttpRequest, be careful to filter content cross-site scripting attacks before injecting it. Only communicate over HTTPS in order to avoid \"man-in-the-middle\" attacks.
Extensions are event based programs used to modify or enhance the Chrome browsing experience. Events are browser triggers, such as navigating to a new page, removing a bookmark, or closing a tab. Extensions monitor these events in their background script, then react with specified instructions.
Once it has been loaded, a background page will stay running as long as it is performing an action, such as calling a Chrome API or issuing a network request. Additionally, the background page will not unload until all visible views and all message ports are closed. Note that opening a view does not cause the event page to load, but only prevents it from closing once loaded.
The only occasion to keep a background script persistently active is if the extension uses chrome.webRequest API to block or modify network requests. The webRequest API is incompatible with non-persistent background pages. By default, \"persistent\" is set to true.
Structure background scripts around events the extension depends on. Defining functionally relevant events allows background scripts to lie dormant until those events are fired and prevents the extension from missing important triggers.
Extensions can remove listeners from their background scripts by calling removeListener. If all listeners for an event are removed, Chrome will no longer load the extension's background script for that event.
When people in your organization create new SharePoint sites, you often need to ensure some level of consistency. For example, you may need proper branding and theming applied to each new site. You may also have detailed site provisioning scripts, such as using the PnP provisioning engine, that need to be applied each time a new site is created.
When a site template is selected, SharePoint creates the new site, and runs site scripts for the site template. The site scripts provide the details for the template such as creating new lists or applying a theme. These script actions are run in the background. When the scripts are complete the page will refresh to display the site script details.
We'd previously capped the limit of site script actions to 30. This remains the limit for scripts applied synchronously using the Invoke-SPOSiteDesign command, but based on customer feedback and support for additional actions we have bumped this limit to 300 actions (or 100,000 characters) when the scripts are applied asynchronously (either through the UI or using the Add-SPOSiteDesignTask command).
If you use the PnP provisioning engine to automate site creation, you can use a Power Automate flow to integrate with site templates. You can maintain all your existing provisioning scripts as well as create new custom provisioning scripts by using this technique.
Once registered, SharpPagesFeature gives all your .html pages scripting super powers where sections can be compartmentalized and any duplicated content can now be extracted into reusable partials, metadata can be added to the top of each page and its page navigation dynamically generated, contents of files and urls can be embedded directly and otherwise static pages can come alive with access to Default Scripts.
There are a number of different ways you can use #Script to render dynamic pages, requests that calls and renders #Script .html pages directly are called \"Content Pages\" which don't use any Services or Controllers and can be called using a number of different styles and calling conventions:
Any .html page available from your AppHost's configured Virtual File Sources can be called directly, typically this would mean the File System which in a .NET Core Web App starts from the WebRootPath (e.g /wwwroot) so a request to /docs/sharp-pages goes through all configured VirtualFileSources to find the first match, which for this website is the file /src/wwwroot/docs/sharp-pages.html.
Essentially #Script Pages embraces conventional page-based routing which enables pretty urls inferred from the pages file and directory names where each page can be requested with or without its .html extension:
The _underscore prefix for declaring wildcard pages is also what is used to declare \"hidden\" pages, to distinguish them from hidden partials and layouts, the recommendation is for them to include layout and partial their name, e,g:
\"View Pages\" are pages that are rendered after a Service is executed, where it's typically used to provide the \"HTML UI\" for the Service's Response DTO where it's populated in the Model page argument as done in Razor ViewPages.
View Pages can be in any nested folder within the /Views folder but all page names within the /Views folder need to be unique. The name should use the format using the format {PageName}.html where PageName can be either:
Unless it's a complete HTML Page (e.g. starts with html or HTML5 tag) the page gets rendered using the closest _layout.html page it can find starting from the directory where the page is located, traversing all the way up until it reaches the root directory. Which for this page uses the /src/wwwroot/_layout.html template in the WebRoot directory, which as it's in the root directory, is the fallback Layout for all .html pages.
Where it instead embed the page using the closest mobile-layout.html it can find, starting from the Page's directory. If your pages are instead embedded in the different folder you can request it directly from the root dir:
The QueryString and FORM variables sent to the page are available as arguments within the page using the form and query (or its shorter qs alias) collections, so a request like /docs/sharp-pagesid=1 can access the id param with {{ qs.id }}. The combined {{ 'id' formQuery }} method enables the popular use-case of checking for the param in POST FormData before falling back to the QueryString. Use {{ 'ids' formQueryValues }} for accessing multiple values sent by multiple checkboxes or multiple select inputs. The {{ 'id' httpParam }} method searches all Request params including HTTP Headers, QueryString, FormData, Cookies and Request.Items.
Just as how Global.asax.cs can be used to run Startup initialization logic in ASP.NET Web Applications and Startup.cs in .NET Core Apps, you can now add a /_init.html page for any script logic that's only executed once on Startup.
These actions are useful after an xcopy/rsync deployment to enable zero downtime deployments by getting a running instance to invalidate all internal caches and force existing pages to check if it has been modified, the next time their called.
Providing an easy way for mixing in markdown content inside a dynamic web page. To embed dynamically rendered markdown content you can use the capture script block to capture dynamic markdown that you can render with the markdown filter: 59ce067264
https://www.almtennisevreux.com/group/tennis/discussion/008890c0-1656-4b48-96cc-2394d4e1a857