Behavior of Shadow DOM role when using the <a> element without an href attribute

Recently, I started working with the shadow DOM and encountered a strange issue:

In my Ionic Angular application, there is a text styled like a link in this form (simplified):

<a href="${ifDefined(this.href)}">link</a>

When testing for its existence using the following code:

const link = screen.getByShadowRole('link');

It appears that if the href attribute is removed due to being set via a variable, the role of the element as a link also gets removed, causing the test to fail. It seems like the a tag loses its Role: Link designation when it doesn't have an href attribute.

I tried to find more information about this behavior but couldn't determine if it's a bug, expected behavior, or why the role is removed from the tag.

typescriptshadow-dom

Answer №1

I couldn't uncover much information regarding this behavior - is it a glitch, anticipated, or why was the role removed from the tag?

It's actually intended behavior. An a element without an href isn't considered a link, hence the absence of that role. According to the HTML standard for a:

Accessibility considerations:

If the element has an href attribute: for authors; for implementers.
Otherwise: for authors; for implementers.

If you visit the "for authors" links provided, you'll notice that an a element with an href is assigned a role="link", while an a lacking an href has a role="generic".

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Broaden material-ui component functionality with forwardRef and typescript

To enhance a material-ui component with typescript, I have the javascript code provided in this link. import Button from "@material-ui/core/Button"; const RegularButton = React.forwardRef((props, ref) => { return ( <B ...

javascriptreactjstypescriptmaterial-ui

What is the best way to retrieve all SVG objects within a specific area in an Angular application?

I am currently developing an SVG drawing application and have implemented a tool that enables users to select all shapes within a rectangular area. However, I am facing the challenge of detecting the SVG shapes located underneath the selected rectangle. ...

javascriptangulartypescriptsvg

How can I display a new module in Angular without navigating to it?

After following the tutorial at https://angular.io/guide/lazy-loading-ngmodules#create-a-feature-module-with-routing I set out to create the following: My goal is to have a dedicated module for all customer-related components accessible through the /cust ...

angulartypescript

Perplexed by the persistent failure of this Jasmine test accompanied by a vexing "timer in queue" error

I'm attempting to test a function that uses RxJS to broadcast long press events to subscribers. Below is the implementation of the function: export function watchForLongPress(target: HTMLElement) { let timer: number; const notifier = new Subject& ...

typescriptunit-testingrxjsjasminekarma-jasmine

Guide to accessing nested form controls within an array and object in Angular Reactive Forms

As a newcomer to Angular, I am in the process of creating a complex form for a food delivery application that I have been developing. The form I am currently working on is designed to allow me to add a new menu item to a restaurant's menu. In this A ...

angulartypescriptangular-reactive-formsangular-formsformarray

Upon the initial loading of GoJS and Angular Links, nodes are not bypassed

Hey there, I'm currently working on a workflow editor and renderer using Angular and GoJS. Everything seems to be in order, except for this one pesky bug that's bothering me. When the page first loads, the links don't avoid nodes properly. H ...

angulartypescriptrenderinggojs

It is impossible to add a promise's value to an array

When attempting to push values into an array and return them, the console only displays an empty array or shows undefined! The issue seems to be that .then does not properly pass the value to the array. const net = require('net'); const find = re ...

javascriptnode.jstypescript

Router failure resulted in an internal server error

When navigating to a page in my router, I make a REST API request to retrieve data from the server in the beforeEnter clause as shown below: beforeEnter: (to, form, next) => { getData().then( (response) => { ...

javascripttypescriptvue.jstoast

How can I access properties of generic types in TypeScript?

Converting the generic type to any is a valid approach (The type E could be a typescript type, class, or interface) of various entities like Product, Post, Todo, Customer, etc.: function test<E>(o:E):string { return (o as any)['property' ...

javascriptangulartypescript

Verifying the outcomes of a spied function with the callThrough method

Is there a way to validate the outcomes of a spied function in nestjs using jasmine? I have set up a jasmine spy on a method to monitor its arguments and response/exception, but I'm unable to access the return value of the spied method. For example, ...

node.jstypescriptjasminenestjs

Exploring the concept of inheritance and nested views within AngularJS

I've encountered a challenge while setting up nested views in AngularJS. Utilizing the ui-router library has been beneficial, but I'm facing issues with separate controllers for each view without proper inheritance between them. This results in h ...

javascriptinheritanceangularjstypescriptangular-ui-router

To ensure the next line only runs after the line above has finished executing, remember that the function is invoked in HTML

my.component.html <button (click)="refresh()">Refresh</button> my.component.ts refresh() { let self = this; self.isRefresh = true; //1st time self.getfun().then(() => { self.isRefresh = false; ...

javascriptangulartypescriptcallback

Ways to Access HTTP Request Headers in Angular 6 upon Page Load

Is it possible to retrieve request header information in Angular 6/7 upon application initialization? I specifically require access to header values for security and access management purposes, as these values are set in the headers during the usage of th ...

angulartypescripthttp

Utilizing TypeScript with Express.js req.params: A Comprehensive Guide

Having an issue with my express.js controller where I am unable to use req.params The error message being displayed is 'Property 'id' is missing in type 'ParamsDictionary' but required in type 'IParam'.' I need a w ...

typescriptexpress

Expanding the table to display additional rows using pagination in an Angular application

I have implemented a table in Angular that displays data fetched from an API. The requirement is to initially display only the first 5 rows and provide an option for users to view more rows (in groups of 5) with pagination support. Below is the code snipp ...

htmlangulartypescript

Ways to ensure that when changes occur in one component, another component is also updated

How can I update the cart badge value in the navbar component every time a user clicks the "Add to Cart" button in the product-list component? The navbar component contains a cart button with a badge displaying the number of products added to the cart. n ...

htmlangulartypescript

Encountering an issue accessing a property retrieved from a fetch request in TypeScript

I am currently dealing with the property success defined in the API (reCAPTCHA). /** * The structure of response from the veirfy API is * { * "success": true|false, * "challenge_ts": timestamp, // timestamp of the challen ...

jsontypescriptnext.jsrecaptcha

Modify the property of the ChildComponent by utilizing the ViewChild method

I recently started exploring Angular and I've been experimenting with ViewChild and ViewChildren. In one scenario, I have a property called today = new Date() in my Component2. I'm accessing this property in Component1 using ViewChild and continu ...

angulartypescriptangular6viewchild

Updating the state in a different component using React and Typescript

The Stackblitz example can be found here I'm attempting to update the useState in one component from another component. Although it seems to work here, it's not functioning properly in my actual application. Here is a snippet of the app.tsx co ...

reactjstypescript

What is the best way to have text wrap around an icon in my React application?

I am facing an issue while trying to display the note description over the trash icon in a React app. I have tried various methods but can't seem to achieve the desired effect. Can anyone guide me on how to get this layout? Here is what I intend to a ...

javascripthtmlcssreactjstypescript