Disabling Locker Service by lowering the API version to 39 or earlier in Salesforce Disabling Locker Service by lowering the API version to 39 or earlier in Salesforce Locker Service is a powerful security architecture for Lightning components.
When is lightning locker enabled in Salesforce?
If a component is set to at least API version 40.0, Lightning Locker is enabled. Salesforce API version 40.0 corresponds to Summer ’17, when Lightning Locker was enabled for all orgs. Lightning Locker is disabled for any component created before Summer ’17 because these components have an API version less than 40.0.
How do I enable or disable lockerservice for a component?
In Summer ’17, LockerService is auto-activated for all orgs with no option to disable.You can disable LockerService for a component by setting version 39.0 or lower for the component. If a component is set to at least API version 40.0, which is the version for Summer ’17, LockerService is enabled.
What is locker service?
What is Locker Service? 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.
When is locker service enabled for an API component?
If a component is set to at least API version 40.0, Locker Service is enabled. API version 40.0 corresponds to Summer ’17, when Locker Service was enabled for all orgs.
Can we disable locker service in lightning component?
You can disable lightning locker by changing the api version of lightning component bundle to 39 or below. How to enable lightning locker? Lightning locker is automatically enabled for component bundles having api version 40 or above.
What is Locker Service in Salesforce lightning?
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.
What is Locker API in Salesforce?
Locker API Viewer shows Locker's support of the standard DOM APIs in the Window, Document, and Element objects. The Secure Window, Secure Document, and Secure Element wrappers prevent use of APIs that are labelled Not Supported.
How do I use a locker console in Salesforce?
Locker Console helps you debug code running Lightning Locker....Enter your code in the text area.Click Evaluate to see the result of running your code with Strict CSP and Locker.Click Benchmark to run your code with and without Locker and view relative performance metrics.Click Clear Results to erase all the results.More items...
What is Salesforce JS?
1. Salesforce-authored components and JS run in “System mode” (similar to the Operating System’s system mode) and have full access to everything. 2. Custom components run in “User mode” and don’t have access to the real Document or real “window” object. 3.
Does locker service use eval?
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.
What is Lightning Locker?
Lightning Locker provides component isolation and security that allows code from many sources to execute and interact using safe, standard APIs and event mechanisms. Lightning Locker is enabled for all custom Lightning web components.
What happens if a browser doesn't meet the requirements for Lightning Locker?
If a browser doesn’t meet the requirements, Lightning Locker can’t enforce all its security features and is disabled. Arrays Proxied When Passed to Child Components. When you pass an array to a child component, Lightning Locker wraps the array in a proxy. Lightning Locker Tools. Lightning Locker tools help you develop secure code ...
Does Lightning Locker use JavaScript?
However, Lightning Locker implicitly enables JavaScript strict mode everywhere. 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 that it created.