Jun 25, 2018 WebKit content blocking exists, and it is indeed built right into Safari – the third-party app is just needed to load filter lists into the content blocker. Score: 4 Votes ( Like Disagree.
Content Blocker
In iOS, a Content Blocker extension customizes the way Safari handles your content. The extension tailors your content by hiding elements, blocking loads, and stripping cookies from Safari requests.
Using a Content Blocker extension, you provide Safari with content-blocking rules that specify how Safari treats content such as images, scripts, and pop-up windows. Your rules can hide Safari-downloaded content or prevent Safari from requesting specific content from the server. By reducing the amount of content Safari requests, your extension can reduce the amount of time required to load pages. When you block content from loading, you reduce Safari’s memory usage and improve Safari’s performance.
In addition to blocking unwanted content, a Content Blocker extension protects privacy. For example, the extension doesn’t have access to users’ browsing activity and it can’t report activity to your app. By blocking cookies and scripts, the extension reduces the information that Safari provides to other websites.
Important
Content Blocker extensions are available for iOS 9.0 and later, macOS 10.11 with Safari 10, and macOS 10.12 and later. The iOS extensions run only on 64-bit devices.
A Content Blocker in Action
Your Content Blocker extension customizes Safari content by providing content-blocking rules. Rules use specific attributes to achieve your desired result. For example, a rule with Listing 7-1Content-blocking rule to block an image
'type': 'block' and 'resource-type': ['image'] prevents Safari from requesting images (Listing 7-1).
Safari follows this rule—that is, it loads content and omits any images that match the rule. The image highlighted in Figure 7-1 has the rule-specified URL, resource type, and selector.
In Figure 7-2, Safari omits that image and loads the other page content.
The same rule with
'resource-type': ['image', 'script'] would prevent requests for scripts as well as images.
Customizing Content-Blocking Rules
The Content Blocker App Extension template in Xcode contains code to send your content-blocking rules to Safari in a JSON format. The JSON consists of an array of rules (triggers and actions) for blocking specified content. Safari converts the JSON to bytecode, which it applies efficiently to all resource loads without leaking information about the user’s browsing back to the app extension. Just edit the JSON file in the template to provide your own triggers and actions. For more information on creating content-blocking rules, see Safari Content-Blocking Rules Reference.
You can change content-blocking rules while your app is running. Your app's UI can offer users customization options such as choosing types of content to block and choosing whether to ignore a block list on a certain websites. Use the
SFContentBlockerManager class to reload the content-blocking rules if the rules change while the extension is running.
Use the Xcode Content Blocker Extension Template
The Xcode Content Blocker Extension template provides default source files for the principal view controller class, an
Info.plist file, and a storyboard file. Figure 7-3 shows the new extension template selected in Xcode.
By default, the Content Blocker template supplies the following
Info.plist keys and values:
These are the only keys and values you need in order to create your Content Blocker extension.
Content Blocker Errors
The most common errors in Content Blockers are caused by rule-formatting errors. The rules should be formatted as objects as shown in Safari Content-Blocking Rules Reference. Missing commas, braces, and brackets will prevent Safari from compiling content-blocking rules.
You can use Safari Web Inspector to debug your Content Blocker Extension. Read Safari Web Inspector Guide for more information.
Copyright © 2018 Apple Inc. All rights reserved. Terms of Use | Privacy Policy | Updated: 2017-10-19
Set Content & Privacy Restrictions
Make sure that you choose a passcode that's different from the passcode you use to unlock your device. To change or turn off the passcode on your child's device, tap Settings > Screen Time > [your child's name]. Then tap Change Screen Time Passcode or Turn Off Screen Time Passcode, and authenticate the change with Face ID, Touch ID or your device passcode.
If you forgot your Screen Time passcode, update your device to the latest iOS or iPadOS then reset your passcode. If you can’t update your device, delete it and set it up as new to remove the passcode and choose a new one. Restoring your device from a backup won't remove your passcode.
Learn more about using Family Sharing with Screen Time.
Prevent iTunes & App Store purchases
You can also prevent your child from being able to install or delete apps, make in-app purchases and more. To prevent iTunes & App Store purchases or downloads:
You can also change your password settings for additional purchases from the iTunes & App Store or Book Store. Follow steps 1-3, then choose Always Require or Don't Require.
Allow built-in apps and features
You can restrict the use of built-in apps or features. If you turn off an app or feature, it won’t delete it, it’s just temporarily hidden from your Home screen. For example, if you turn off Mail, the Mail app won't appear on your Home Screen until you turn it back on.
To change your Allowed Apps:
![]() Prevent explicit content and content ratings
You can also prevent the playback of music with explicit content and movies or TV shows with specific ratings. Apps also have ratings that can be configured using content restrictions.
To restrict explicit content and content ratings:
Here are the types of content that you can restrict:
Prevent web content
iOS can automatically filter website content to limit access to adult content in Safari and apps on your device. You can also add specific websites to an approved or blocked list, or you can limit access to only approved websites. Follow these steps:
Depending on the access you allow, you may need to add information, like the website that you want to restrict.
Content Blocker App For Mac DownloadRestrict Siri web search
To restrict Siri features:
You can restrict these Siri features:
Restrict Game Center
To restrict Game Center features:
You can restrict these Game Center features:
Allow changes to privacy settings
The privacy settings on your device give you control over which apps have access to information stored on your device or the hardware features. For example, you can allow a social networking app to request access to use the camera, which allows you to take and upload pictures.
To allow changes to privacy settings:
App Blocker Download
Here are the things you can restrict:
Allow changes to other settings and features
You can allow changes to other settings and features, the same way you can allow changes to privacy settings.
Here are some features and settings you can allow changes for:
Learn moreApp Blocker Windows 10
Content Blocker App For Mac Windows 10
Businesses and schools often use profiles, which can turn on Restrictions. To find out if your device has a profile, go to Settings > General > Profiles. Contact your administrator or the person who set up the profile for more information.
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