MDB Sidenav is failing accessibility audit

Expected behavior

All MDB components pass accessibility tests, for example using Lighthouse

Actual behavior

We've implemented the MDB sidenav and when we run an accessibility audit using Chrome's Lighthouse snapshot test, it fails. You can see the report below.

It looks like we cannot fix this ourselves. We need you in the MDB Team to include an improvement in a future release. Soon please. It's not good that our accessibility score is negatively affected by this MDB component.

If the problem originates in the way we've implemented this, please explain what we can do to make the sidenav accessible ourselves.

Google Chrome rates this problem as "SERIOUS". According to the linked info in the Lighthouse: https://dequeuniversity.com/rules/axe/4.4/aria-hidden-focus?utm_source=lighthouse&utm_medium=devtools

Thanks in advance for caring about accessibility when you are planning your next release!

Resources (screenshots, code snippets etc.)

[aria-hidden="true"] elements contain focusable descendentsFocusable descendents within an [aria-hidden="true"] element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn more.Failing Elementsmdb-sidenav-layout > multisite-sidenav > mdb-sidenav > div.cdk-visually-hiddenmdb-sidenav-layout > multisite-sidenav > mdb-sidenav > div.cdk-visually-hidden

Layout

    <mdb-sidenav-layout>
  <multisite-sidenav #sidenav [user]="user" (sideNavToggled)="sidenavToggled($event)"
  ></multisite-sidenav>
  <mdb-sidenav-content #sidenavContent>
    <div class="custom-backdrop"></div>
    <header>
      <multisite-main-navigation
        [user]="user"
        [logo]="'default'"
        [navLinks]="mainNavigationLinks"
        (doSideNavToggle)="toggleSidenav()"
        (logout)="logout()"
        [loading]="loading"
        [sidenavStatus]="sidenavStatus"
        >
      </multisite-main-navigation>
    </header>
    <multisite-breadcrumb></multisite-breadcrumb>
    <main> 
      <section class="main-section">
        <router-outlet></router-outlet>
      </section>
    </main>

    <multisite-footer></multisite-footer> 
  </mdb-sidenav-content>
</mdb-sidenav-layout>

CONTENT

<mdb-sidenav #sidenav="mdbSidenav"
  [backdrop]="false"
  [backdropClass]="'custom-backdrop'"
  [width]="360"
  [slimWidth]="136"
  [right]="true"
  (sidenavHidden)="toggled('hidden', $event)"
  (sidenavExpanded)="toggled('expanded', $event)"
  (sidenavCollapsed)="toggled('collapsed', $event)"
  >
  <ul class="sidenav-menu" [ngClass]=" sidenav.slimCollapsed ? 'sidenav-slim' : 'sidenav-wide'">
    <!-- SIDENAV TOP PART -->
    <li class="sidenav-top-content">
      <div class="sidenav-header">
        <div class="content-left">
          <a class="sidenav-close" (click)="toggle()" tabindex="0" *ngIf="!sidenav.slim">
            <i class="fas fa-times"></i>
          </a>
        </div>
        <div mdbDropdown class="dropdown dropstart">
          <a class="nav-link dropdown-toggle" id="navbarSettingsDropdown" role="button" mdbDropdownToggle
            aria-expanded="false">
            <div class="content-right">
              <div class="profile-info">
                <p class="name h5">{{user?.fname +' ' +user?.lname}}</p>
                <p class="profession h6">{{user?.profile?.job_title}}</p>
              </div>

              <img class="user-profile-img"
                [src]="user?.picture ? user.picture : 'https://res.cloudinary.com/cebt/image/upload/v1616972586/users/avatars/default-avatar.gif' "
                alt="Profile image">
                <span class="click-indicator animation-pulse-infinite"></span>

            </div>
          </a>
            <multisite-user-account-dropdown [user]="user" mdbDropdownMenu class="dropdown-menu"></multisite-user-account-dropdown>
        </div>
      </div>
    </li>
    <!-- 
      SIDENAV BOTTOM PART
      (One scrollable element - ssplit into two parts) 
    -->
    <li class="sidenav-main-content">
      <!-- TOP PART OF MAIN CONTENT -->
      <div>
        <div class="card-group">
          <!-- Card -->
          <div class="card-sidenav">
            <div class="card-body">
              <div class="content-left">
                <div class="card-status-icon bg-success">
                  A
                </div>
                <div class="card-text text-wrap">
                  <p class="card-title">Course A</p>
                  <p class="card-value">100%</p>
                </div>
              </div>
              <div class="content-right">
                <button class="btn" aria-label="Useful name for button A">
                  <i class="fa-solid fa-angle-right"></i>
                </button>
              </div>
            </div>
          </div>
          <!-- Card -->
          <div class="card-sidenav">
            <div class="card-body">
              <div class="content-left">
                <div class="card-status-icon bg-warning">
                  B
                </div>
                <div class="card-text text-wrap">
                  <p class="card-title">Course A</p>
                  <p class="card-value">100%</p>
                </div>
              </div>
              <div class="content-right">
                <button class="btn" aria-label="Useful name for button A">
                  <i class="fa-solid fa-angle-right"></i>
                </button>
              </div>
            </div>
          </div>
          <!-- Card -->
          <div class="card-sidenav">
            <div class="card-body">
              <div class="content-left">
                <div class="card-status-icon bg-danger">
                  C
                </div>
                <div class="card-text text-wrap">
                  <p class="card-title">Course A</p>
                  <p class="card-value">100%</p>
                </div>
              </div>
              <div class="content-right">
                <button class="btn" aria-label="Useful name for button A">
                  <i class="fa-solid fa-angle-right"></i>
                </button>
              </div>
            </div>
          </div>
          <a href="#">Show all cards</a>
        </div>
        <div class="accreditation-card bg-success">
          <img src="https://iili.io/HH2EezN.png" alt="badge">
          <div class="card-text text-wrap">
            <p class="title text-white">Accredited until 2025</p>
            <p class="sub-title text-white">New Tool</p>
          </div>
        </div>
      </div>
      <!-- BOTTOM PART OF MAIN CONTENT -->
      <div>
        <hr>
        <div class="progress-card">
          <p class="title" id="progresslabel">
            Total Progress
          </p>
          <p class="progress-value">
            68%
          </p>
          <div class="progress">
            <div class="progress-bar" role="progressbar" style="width: 68%" aria-valuenow="68" aria-valuemin="0"
              aria-valuemax="100" aria-labelledby="progresslabel"></div>
          </div>
        </div>
        <div class="trainer-card">
          <carousel [interval]="false">
            <p class="trainer-title">Trainers</p>
            <slide>
              <div class="trainer-img">
                <img src="https://iili.io/yzAHJf.png" alt="">
                <div class="status-indicator"></div>
              </div>
              <div class="card-text">
                <p class="title">Terry Tester</p>
                <p class="subtitle">
                  Head of ...
                </p>
              </div>
            </slide>
            <slide>
              <div class="trainer-img">
                <img src="https://iili.io/yzAHJf.png" alt="">
                <div class="status-indicator"></div>
              </div>
              <div class="card-text">
                <p class="title">Earl E. Adopta</p>
                <p class="subtitle">
                  UX/UI Designer
                </p>
              </div>
            </slide>
            <slide>
              <div class="trainer-img">
                <img src="https://iili.io/yzAHJf.png" alt="">
                <div class="status-indicator"></div>
              </div>
              <div class="card-text">
                <p class="title">John Doe</p>
                <p class="subtitle">
                  NaN
                </p>
              </div>
            </slide>
          </carousel>

          <!-- <div class="card-body bg-white">
              <div class="trainer-img">
                <img src="https://iili.io/yzAHJf.png" alt="">
                <div class="status-indicator"></div>
              </div>
              <div class="card-text">
                text
              </div>
            </div> -->
        </div>
      </div>
    </li>
  </ul>
</mdb-sidenav>