Locker service and lightning web components












5














Is there any documentation yet on how locker service fits in with lightning web components? If yes,




  1. What are the implications of locker service on lightning web components?

  2. What are locker service guidelines to work with lightning web components?










share|improve this question





























    5














    Is there any documentation yet on how locker service fits in with lightning web components? If yes,




    1. What are the implications of locker service on lightning web components?

    2. What are locker service guidelines to work with lightning web components?










    share|improve this question



























      5












      5








      5


      3





      Is there any documentation yet on how locker service fits in with lightning web components? If yes,




      1. What are the implications of locker service on lightning web components?

      2. What are locker service guidelines to work with lightning web components?










      share|improve this question















      Is there any documentation yet on how locker service fits in with lightning web components? If yes,




      1. What are the implications of locker service on lightning web components?

      2. What are locker service guidelines to work with lightning web components?







      locker-service lightning-web-components






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Dec 14 '18 at 14:38









      Mohith Shrivastava

      59.9k797139




      59.9k797139










      asked Dec 14 '18 at 14:11









      codeyinthecloud

      3,2951423




      3,2951423






















          1 Answer
          1






          active

          oldest

          votes


















          5














          If you have access to the spring19 pre release org you can explore the documents on the "lightning web components security via locker service" in developer guide. The docs are available for lockerservice @ (YourDomain.lightning.force.com/docs/component-library/documentation/lwc/lwc.security_locker_service)



          Lets highlight some key points from document



          DOM Access Containment



          You cannot use document.querySelector() and the syntax to access the shadow DOM will be this.template.querySelector()



          Secure Wrappers



          Still you will need SecureWindow, SecureDocument , SecureObject (All these were available in aura locker). On top of it you also have new secure elements SecureLightningElement and SecureTemplate.



          SecureLightningElement is a base class that every lightning web component extends from .



          SecureTemplate is the shadowRoot node .The docs list which APIS are not supported .



          Restrict access to Global Variables



          Global variables like $Aura,$A, sfdc and sforce are all restricted .



          CSP Support



          All Javascript libraries needs to be referenced from static resource and all external images , fonts and CSS needs to use HTTPS .



          Except for IE11 ,the locker security principles are applied to the lightning web components as well .






          share|improve this answer



















          • 2




            I was about to post the answer but you beat me! Thanks
            – codeyinthecloud
            Dec 14 '18 at 14:39










          • Hey! is development guidelines for LWC out?
            – Dhanik Lal Sahni
            Dec 18 '18 at 8:12











          Your Answer








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          1 Answer
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          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          5














          If you have access to the spring19 pre release org you can explore the documents on the "lightning web components security via locker service" in developer guide. The docs are available for lockerservice @ (YourDomain.lightning.force.com/docs/component-library/documentation/lwc/lwc.security_locker_service)



          Lets highlight some key points from document



          DOM Access Containment



          You cannot use document.querySelector() and the syntax to access the shadow DOM will be this.template.querySelector()



          Secure Wrappers



          Still you will need SecureWindow, SecureDocument , SecureObject (All these were available in aura locker). On top of it you also have new secure elements SecureLightningElement and SecureTemplate.



          SecureLightningElement is a base class that every lightning web component extends from .



          SecureTemplate is the shadowRoot node .The docs list which APIS are not supported .



          Restrict access to Global Variables



          Global variables like $Aura,$A, sfdc and sforce are all restricted .



          CSP Support



          All Javascript libraries needs to be referenced from static resource and all external images , fonts and CSS needs to use HTTPS .



          Except for IE11 ,the locker security principles are applied to the lightning web components as well .






          share|improve this answer



















          • 2




            I was about to post the answer but you beat me! Thanks
            – codeyinthecloud
            Dec 14 '18 at 14:39










          • Hey! is development guidelines for LWC out?
            – Dhanik Lal Sahni
            Dec 18 '18 at 8:12
















          5














          If you have access to the spring19 pre release org you can explore the documents on the "lightning web components security via locker service" in developer guide. The docs are available for lockerservice @ (YourDomain.lightning.force.com/docs/component-library/documentation/lwc/lwc.security_locker_service)



          Lets highlight some key points from document



          DOM Access Containment



          You cannot use document.querySelector() and the syntax to access the shadow DOM will be this.template.querySelector()



          Secure Wrappers



          Still you will need SecureWindow, SecureDocument , SecureObject (All these were available in aura locker). On top of it you also have new secure elements SecureLightningElement and SecureTemplate.



          SecureLightningElement is a base class that every lightning web component extends from .



          SecureTemplate is the shadowRoot node .The docs list which APIS are not supported .



          Restrict access to Global Variables



          Global variables like $Aura,$A, sfdc and sforce are all restricted .



          CSP Support



          All Javascript libraries needs to be referenced from static resource and all external images , fonts and CSS needs to use HTTPS .



          Except for IE11 ,the locker security principles are applied to the lightning web components as well .






          share|improve this answer



















          • 2




            I was about to post the answer but you beat me! Thanks
            – codeyinthecloud
            Dec 14 '18 at 14:39










          • Hey! is development guidelines for LWC out?
            – Dhanik Lal Sahni
            Dec 18 '18 at 8:12














          5












          5








          5






          If you have access to the spring19 pre release org you can explore the documents on the "lightning web components security via locker service" in developer guide. The docs are available for lockerservice @ (YourDomain.lightning.force.com/docs/component-library/documentation/lwc/lwc.security_locker_service)



          Lets highlight some key points from document



          DOM Access Containment



          You cannot use document.querySelector() and the syntax to access the shadow DOM will be this.template.querySelector()



          Secure Wrappers



          Still you will need SecureWindow, SecureDocument , SecureObject (All these were available in aura locker). On top of it you also have new secure elements SecureLightningElement and SecureTemplate.



          SecureLightningElement is a base class that every lightning web component extends from .



          SecureTemplate is the shadowRoot node .The docs list which APIS are not supported .



          Restrict access to Global Variables



          Global variables like $Aura,$A, sfdc and sforce are all restricted .



          CSP Support



          All Javascript libraries needs to be referenced from static resource and all external images , fonts and CSS needs to use HTTPS .



          Except for IE11 ,the locker security principles are applied to the lightning web components as well .






          share|improve this answer














          If you have access to the spring19 pre release org you can explore the documents on the "lightning web components security via locker service" in developer guide. The docs are available for lockerservice @ (YourDomain.lightning.force.com/docs/component-library/documentation/lwc/lwc.security_locker_service)



          Lets highlight some key points from document



          DOM Access Containment



          You cannot use document.querySelector() and the syntax to access the shadow DOM will be this.template.querySelector()



          Secure Wrappers



          Still you will need SecureWindow, SecureDocument , SecureObject (All these were available in aura locker). On top of it you also have new secure elements SecureLightningElement and SecureTemplate.



          SecureLightningElement is a base class that every lightning web component extends from .



          SecureTemplate is the shadowRoot node .The docs list which APIS are not supported .



          Restrict access to Global Variables



          Global variables like $Aura,$A, sfdc and sforce are all restricted .



          CSP Support



          All Javascript libraries needs to be referenced from static resource and all external images , fonts and CSS needs to use HTTPS .



          Except for IE11 ,the locker security principles are applied to the lightning web components as well .







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Dec 14 '18 at 14:39

























          answered Dec 14 '18 at 14:38









          Mohith Shrivastava

          59.9k797139




          59.9k797139








          • 2




            I was about to post the answer but you beat me! Thanks
            – codeyinthecloud
            Dec 14 '18 at 14:39










          • Hey! is development guidelines for LWC out?
            – Dhanik Lal Sahni
            Dec 18 '18 at 8:12














          • 2




            I was about to post the answer but you beat me! Thanks
            – codeyinthecloud
            Dec 14 '18 at 14:39










          • Hey! is development guidelines for LWC out?
            – Dhanik Lal Sahni
            Dec 18 '18 at 8:12








          2




          2




          I was about to post the answer but you beat me! Thanks
          – codeyinthecloud
          Dec 14 '18 at 14:39




          I was about to post the answer but you beat me! Thanks
          – codeyinthecloud
          Dec 14 '18 at 14:39












          Hey! is development guidelines for LWC out?
          – Dhanik Lal Sahni
          Dec 18 '18 at 8:12




          Hey! is development guidelines for LWC out?
          – Dhanik Lal Sahni
          Dec 18 '18 at 8:12


















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