How does locker service work in Lightning Salesforce?

How does locker service work in Lightning Salesforce?

Locker service in lightning Salesforce. Understanding: Locker Service is a powerful security architecture for Lightning components. Locker Service enhances security by isolating Lightning components that belong to one namespace from components in a different namespace.

Which is the latest version of locker service?

If a component is set to at least API version 40.0, which is the version for Summer ’17, LockerService is enabled. When you create a component, the default version is the latest API version. In Developer Console, click Bundle Version Settings in the right panel to set the component version.

How to check if your library is compatible with locker service?

To check if your libraries are compliant with Locker service, you have to upload them in static resources and then check by using some functions of the library. If it is supported in locker service then, it will run without any issue, otherwise it will throw some error.

Do you need locker service to use Eval?

Take a look at the output. Locker service only allows usage of eval in global scope. Third-party libraries that use eval must be compliant with locker service. To check if your libraries are compliant with Locker service, you have to upload them in static resources and then check by using some functions of the library.

When is lightning locker auto activated for all Orgs?

In Summer ’17, Lightning Locker will be auto-activated for all orgs with no option to disable. To control whether Lightning Locker is enforced for components installed from a managed package:

What are the best practices for lightning locker?

Lightning Locker also promotes best practices that improve the supportability of your code by only allowing access to supported APIs and eliminating access to non-published framework internals. Lightning Locker implicitly enables JavaScript strict mode. You don’t need to specify “use strict” in your code.

What do you need to know about locker service?

Locker Service and Lightning Components Locker Service is a set of security features for Lightning Components. In this session explain why we built Locker Service, how developers can build components that are Locker Service compliant, and the tools you can use with Locker Service. Watch the latest videos from Salesforce.

How to load external JavaScript to Lightning components?

But building applications also depend on tons of other OSS libraries like JQuery, Twitter Bootstrap, Moment.js and more to implement various features. While loading 3rd party libraries is trivial, loading them into a trusted enterprise environment like Salesforce needs to meet our strict security needs.

When do you deactivate Lightning locker in org?

In Winter ’17, Lightning Locker can be activated or deactivated in your org. Note: To ensure compatibility with Lightning Locker before the Summer ’17 release, test your Lightning components in a sandbox or a Developer Edition org.

When does the CSP apply for lightning locker?

If you have a sandbox or Developer Edition org with the Lightning Locker critical update activated, the stricter CSP will apply when Spring ’17 rolls out. If you deactivate the Lightning Locker critical update before the Spring ’17 release, the stricter CSP won’t be applied.

Which is the isolation mechanism for the Lightning component framework?

The Lightning Component Framework comes with two isolation mechanisms: LockerService and the Lightning Container Component (in Developer Preview in Spring ’17). LockerService is the primary and preferred isolation mechanism for the Lightning Component Framework.

Which is the best third party library for lightning?

Third-party libraries usually fall in one of the following categories: Specialized utility libraries (moment.js, numeral.js, etc) Data visualization libraries (D3, Chart.js, Leaflet, etc) Before we look at how you can use a third-party library in a Lightning Component, it’s useful to ask yourself why you are using it, and if you really need it.

How does Lightning locker work in JavaScript?

Lightning Locker implicitly enables JavaScript strict mode. You don’t need to specify “use strict” in your code. JavaScript strict mode makes code more secure, robust and supportable. A component can only traverse the DOM and access elements created by a component in the same namespace.

How does Lightning locker restrict use of global objects?

For security, Lightning Locker restricts the use of global objects by hiding an object or by wrapping it in a secure version of the object. For example, the secure version of window is SecureWindow. Locker intercepts calls to window and uses SecureWindow instead.

Is the eval ( ) function supported in Lightning locker?

In Lightning Locker, use of the eval() function is supported to enable use of third-party libraries that evaluate code dynamically. However, it is limited to work only in the global scope of the namespace. The eval() function can’t access the local variables within the scope in which it’s called.

Are there any browsers that work with Salesforce?

Accessing the full site in any mobile browser isn’t supported. Instead, we recommend using the Salesforce1 app when you’re working on a mobile device. To see the mobile browsers that are supported for Salesforce1, check out Requirements for the Salesforce1 Mobile App.

Can a salesforce app be opened in SF1 mode?

These steps don’t affect the Salesforce1 downloadable apps which always display the Salesforce1 interface. Tap Navigation icon. Tap Full Site. Yes unchecking “Salesforce1 user” option only answer to your requirement. as after unchecking if a user open salesforce in mobile browser, it will open in full mode not in SF1 mode.