Questions tagged [locker-service]
Locker Service is a set of new security features for Lightning Components.
2
votes
0answers
64 views
Modern JavaScript Frameworks (Angular Js, React JS ) within LWC
As documented on the below link,
https://developer.salesforce.com/docs/component-library/documentation/lwc/lwc.get_started_supported_javascript
Lightning Web Components Javascript support includes :...
0
votes
1answer
58 views
Is it possible to call an intranet or local server using a lightning component?
For example, if a local server outputs a JSON with sensitive information, and I can access it through my local network, can I access this data using a lightning component?
1
vote
1answer
73 views
Is it possible to disable Locker Service for Lightning Web Components? (I mean LWC and not Aura Components!)
Is it possible to disable Locker Service for Lightning Web Components? For Aura Components it goes like this:
https://developer.salesforce.com/docs/atlas.en-us.lightning.meta/lightning/...
3
votes
0answers
57 views
AuraError: Error at new Aura.externalLibraries
Background
I am using this approach Call REST API from Lightning Components without Named Credentials to call the Salesforce REST API from a Lightning component.
It works when I call this URL:
/...
0
votes
1answer
158 views
jQuery/DataTable methods in Lightning Web Component - (…).DataTable is not a function
I'm trying to write a Lightning Web Component which uses jquery and datatable static resources and getting an annoying error message without any idea how to solve it.
My html code is:
<div class="...
0
votes
1answer
54 views
Lightning data locker restricting Javascript for CSS/HTML
I am trying to retrieve JavaScript Static resource in Community lightning component to override the numbering from Unescaped html. But the data locker service is blocking the script.
Am trying to ...
1
vote
1answer
50 views
LockerService seems to be blocking adding new properties to JS objects in LWC [duplicate]
I am facing issue with LWC, probably connected to the LockerService's Proxy objects.
My code
I am getting the list of custom objects defined in one of my Apex classes by calling Apex method from LWC ...
0
votes
1answer
40 views
Locker Service and 3rd party library, how to pass Security review?
Is it a way to use 3rd party library/framework like Vue/Angular and bypass security review by Salesforce. Because only option to use those kind of library seems possible with version 39.0 which is ...
4
votes
2answers
309 views
FullCalendar V4 is not working in lightning component
I am trying to show calendar view using fullcalender.io v4 in lightning component.
Initially the fullcalender loads without any issue but when I hover over the calender UI, I'm getting the below ...
1
vote
0answers
239 views
jsPDF and Salesforce Lightning Web Component
I'm trying to create a Salesforce Lightning Web Component to create a custom Quote PDF using jsPDF. I mastered to use the external chart.js library with uploading it as a static resource, but when I ...
1
vote
1answer
31 views
Iframe allow tag not supported in lightning component?
I tried adding the allow="microphone" tag in iframe that I added in salesforce lightning component, but when I load the page it throws a Uncaught AuraFriendlyError. Is it not supported, also if not is ...
1
vote
0answers
81 views
LockerService Error while using Range.setStart
Why does LockerService Error while using Range.setStart?
Getting the error "Failed to execute 'setStart' on 'Range': parameter 1 is not of type 'Node'.
This is when using popper.js dependency in a ...
1
vote
0answers
85 views
SVG API incomplete in LWC/Locker
I want to create a custom component that wraps the yFiles for HTML graph drawing component in an LWC component, but it seems some of the SVG API is not implemented or rather hidden behind the locker ...
0
votes
1answer
45 views
Uncaught SecureElement.innerHTML cannot be used with BODY elements! when using dhtmlxGantt in Lightning Component
I am trying to use dhtmlxGantt inside a Lightning Component.
CMP
<aura:component implements="flexipage:availableForAllPageTypes">
<ltng:require styles="{!$Resource.dhtmlxgantt_css }" /&...
1
vote
1answer
468 views
Blocked by CORS policy: No 'Access-Control-Allow-Origin' header on the requested resource
I am trying to use a Google Charting library inside a Lightning Aura Component.
Component
<aura:component implements="flexipage:availableForAllPageTypes">
<ltng:require scripts="{!$...
1
vote
1answer
30 views
invoking .click() function in lightning component
Client needs demand that we don't use the default SLDS style for the file uploads.
Basically, have a specific icon we have to use for uploads which isn't the SF one.
In prior releases, we were able ...
2
votes
1answer
116 views
How can you get the caret position when working from an event?
Looking at the Locker documentation they list selectionStart as being a valid attribute, but I can't find a way to access it.
I am trying to write an input masking utility, and everything works fine ...
3
votes
0answers
65 views
Using postMessage across different namespaced components
In Salesforce, postMessage is mainly used for communicating in between Visualforce and Lightning components
Communicating between Lightning Components and Visualforce Pages
Window.postMessage()
...
0
votes
3answers
378 views
access Target Element in Proxy
i have the following line:
var childCmp = cmp.find("lookupCmp");
My Lightning component API Version is 44.0
lookupCmp is a custom lightning component.
When i run this line i get:
childCmp = ...
3
votes
1answer
54 views
Why ECMAscript 6 Object.freeze not working with Locker Service?
We have a library we created using ECMACScript 6 that we transpiled using babel that worked perfectly with a VisualForce page. Migrating this library to work with Locker Service I found that Object....
0
votes
2answers
234 views
Alternative for javascript window method for visualforce pages in lightning
With the lightning readiness report there is mention that javascript window method won't perform as supposed to in Lightning. Salesforce documentation suggest sforce.one navigation methods to replace ...
6
votes
1answer
631 views
Locker service and lightning web components
Is there any documentation yet on how locker service fits in with lightning web components? If yes,
What are the implications of locker service on lightning web components?
What are locker service ...
3
votes
0answers
140 views
Is it possible to disable mobile touch on a Salesforce community
Background
I have a community page which displays a calendar by FullCalendar
The calendar is in a Lightning Component.
Both Salesforce Communities and FullCalendar support mobile devices.
...
0
votes
1answer
40 views
Locker Service and CSS in JS
Without trying this myself I was curious if anyone else was able to get CSS in JS to work within the confines of LockerService. At first glance it looks like styled-components might actually work as ...
1
vote
1answer
106 views
Only 1 of 3 JavaScript files load when using <ltng:require> and afterScriptsLoaded event not firing
Background
I am trying to use the PageDown JavaScript library:
Markdown.Converter.js - (click to view source)
Markdown.Editor.js - (click to view source)
Markdown.Sanitizer.js - (click to view ...
4
votes
1answer
321 views
Stripe integration for Salesforce in lightning components
We are trying to implement Stripe integration with Salesforce by using Lightning Components for payments.
Stripe use an API for securely obtain the users card information. This API is for the client,...
1
vote
1answer
54 views
Multi thread in lightning component script
im looking for some method to divide thread in my lightning component JS.
As far as I know is JS running on single thread.
but web.Worker function can be alternative.
i tried to use web.worker .. ...
0
votes
1answer
37 views
loop through components looking for data in it
im building a list that people select only a single item which works in a limited capacity but reloading or re-selecting isnt very user friendly. the basic concept is a controller retrieves selections,...
5
votes
2answers
140 views
accessing a lighning inputField lookup name client side
I am easily able to fetch a lookup ID from a inputField
<lightning:recordEditForm
objectApiName="Case">
<!-- the messages component is for error messages -->
<...
11
votes
3answers
849 views
Lightning support for eval() in Summer 18
I thought that eval() was supported in Lightning in Summer 18. According to the release notes, it is:
The eval() function is now available in Locker Service, even when
Strict CSP is enabled. This ...
2
votes
1answer
212 views
Library import not working
I am trying to import a library into Salesforce Lightning using ltng:require. Problem is, when I try to use some of the objects from the library in my controller, it can't find those objects. I have a ...
1
vote
1answer
96 views
Cannot read property 'Converter' of undefined, when using StackExchange PageDown Library in Lightning Component
BACKGROUND
I am trying to use the PageDown JavaScript library:
Markdown.Converter.js - (click to view source)
Markdown.Editor.js - (click to view source)
Markdown.Sanitizer.js - (click to view ...
0
votes
1answer
42 views
Using princexml and PDFreactor in Lightning component with version 43.0
I want to know if Salesforce allows princexml or PDFreactor js library to work if locker service is enabled. This files are used to convert html to PDF
1
vote
1answer
212 views
jsPDF library does not work in Lightning components 43.0 version
I have stored jsPDF library in static resource and using it in lightning component where version is 43.0. This library does not work if LockerService is enabled.I decreased version to 39.0 and then it ...
1
vote
1answer
89 views
How to show the difference with and without locker service using lightning components?
I created one component before activation of the locker service. After that i created another component after activation of the locker service. But my doubt is how to know, what is the difference ...
1
vote
1answer
65 views
Why different orgs behave differently with supposedly same config for Locker Service
So, reading documentation regarding locker-service I get that the only way of disable it, is downgrading the api version of each component to 39 or less. Also, documentation says that there is no ...
0
votes
0answers
313 views
HTTP Form Post to external website from Lightning Component
I am working with a client to develop a managed package. Here is the requirement in brief:
User clicks a button in a lightning component which is added to Contact detail page.
The button click ...
3
votes
1answer
219 views
Generating a PDF from a Lightning Page with LockerService restrictions
I'm trying to generate a PDF from a Lightning Page using jsPDF.
When I use the addHTML function in jsPDF I get an error (but only if locker service is enabled). The problem is in the use of ...
1
vote
0answers
185 views
Lightning Component CSP - Meta tag http-equiv for TinyMCE
I have a lightning sub component within a larger component that uses TinyMCE js library locally to provide advanced editing capabilities. The component works when I disable LockerService, by setting ...
2
votes
1answer
45 views
Why do I get a different type dependant on when I evaluate a JavaScript variable in Salesforce Lightning
I would like to understand why the typeof a JavaScript variable is different depending on where I evaluate it, even though I have't changed it.
I have a object like this:
var model = {}
model.user = ...
2
votes
2answers
288 views
Invalid SecureWindow API, toString was blacklisted : Source Error in Lightning
I am new to Lightning. I have created Lightning component and a controller.
Lightning component code:
<aura:component >
<ui:button press="{!c.doInit}">
<div class="testClass">...
4
votes
3answers
1k views
How to Use lightning Locker Service in sandbox
I know how to configure security model through OWD, Sharing Rules, Profiles and Roles in salesforce sandbox account but how to use Lightning Security Locker Service instead of OWD, Sharing Rules...etc
...
0
votes
1answer
159 views
lightning:actionOverride set Page Title
I've create a lightning component which implements lightning:actionOverride, for use as a custom new record page.
I've created an object called "Custom Object" with API Name "CustomObject__c"
...
1
vote
2answers
168 views
what is the difference between lightning with locker service and without locker service using in components?
I know little bit knowlege of lightning components. I am new to Lightning locker service. What is the difference between lightning with locker service and without locker service? how to know it is ...
6
votes
3answers
626 views
How to unproxy LockerService wrapped data for debugging via console.log()?
In Lightning Components I love to use console.log() to get an understanding what is happening. Often there is data shown as "Proxy{}", which looks in the console like this
I KNOW that there is fine ...
1
vote
0answers
106 views
lightning Component access denied from namespace
I am testing a simple lightning component which uses 3rd party js loaded as static resource. Originally I made in in a traiheadplayground. It is a sigle component and in app that only includes that ...
4
votes
3answers
209 views
How serious is this sfdx force:lightning:lint error on Array.from?
This Lightning Component code appears to work:
var tab = component.get("v.tab");
var fields = new Set();
tab.qualifiedFieldApiNames.forEach(function(item) {
if (item) fields.add(...
13
votes
1answer
664 views
component.find({ instancesOf : “lightning:input”}) return empty list in Summer '18
With new Summer '18 release following code returns empty list:
component.find("social-security-number-form").find({instancesOf : "lightning:input"})
"social-security-number-form" is an aura:id of ...
3
votes
1answer
181 views
lightning:checkboxGroup - set checkbox indeterminate = true
I'm using lightning:checkboxGroup and I'm trying to set the state one of the individual checkboxes as indeterminate. I tried the following JS:
component.find("my-chbxgroup").getElement()....
6
votes
2answers
314 views
Cometd not working in summer 18
We have been using cometd with pushTopic. But we facing an issue an issue in summer 18 org that handshake with cometd is failing in lightning component. if we use lightning component directly in ...
