diff --git a/packages/web-components/src/components/masthead/__stories__/links.ts b/packages/web-components/src/components/masthead/__stories__/links.ts
index ea523f1aaf7..e8ac7664cc7 100644
--- a/packages/web-components/src/components/masthead/__stories__/links.ts
+++ b/packages/web-components/src/components/masthead/__stories__/links.ts
@@ -88,7 +88,7 @@ const mastheadL1Data: MastheadL1 = {
       submenu: {
         columns: 2,
         announcement:
-          '<strong>Lorem ipsum:</strong> Full announcement may be linked or only a portion as an <a href="#">inline link</a>',
+          '<strong>Lorem ipsum:</strong> Full announcement may be linked or only a portion as an <a href="https://example.com">inline link</a>',
         footer: {
           title: 'View all lorem ipsum (B)',
           url: 'https://example.com',
@@ -145,7 +145,7 @@ const mastheadL1Data: MastheadL1 = {
       submenu: {
         columns: 3,
         announcement:
-          '<strong>Lorem ipsum:</strong> Full announcement may be linked or only a portion as an <a href="#">inline link</a>',
+          '<strong>Lorem ipsum:</strong> Full announcement may be linked or only a portion as an <a href="htts://example.com">inline link</a>',
         menuSections: [
           {
             span: 1,
@@ -236,7 +236,7 @@ const mastheadL1Data: MastheadL1 = {
       submenu: {
         columns: 3,
         announcement:
-          '<strong>Lorem ipsum:</strong> Full announcement may be linked or only a portion as an <a href="#">inline link</a>',
+          '<strong>Lorem ipsum:</strong> Full announcement may be linked or only a portion as an <a href="htts://example.com">inline link</a>',
         menuSections: [
           {
             span: 1,
@@ -407,7 +407,7 @@ const mastheadL1Data: MastheadL1 = {
       submenu: {
         columns: 2,
         announcement:
-          '<strong>Lorem ipsum:</strong> Full announcement may be linked or only a portion as an <a href="#">inline link</a>',
+          '<strong>Lorem ipsum:</strong> Full announcement may be linked or only a portion as an <a href="htts://example.com">inline link</a>',
         footer: {
           title: 'View all lorem ipsum (E)',
           url: 'https://example.com',
diff --git a/packages/web-components/src/components/masthead/masthead-cart.ts b/packages/web-components/src/components/masthead/masthead-cart.ts
index 07dbbd0e3b5..11bd201a9c5 100644
--- a/packages/web-components/src/components/masthead/masthead-cart.ts
+++ b/packages/web-components/src/components/masthead/masthead-cart.ts
@@ -11,7 +11,7 @@ import StableSelectorMixin from '../../globals/mixins/stable-selector';
 import { html, LitElement } from 'lit';
 import { property, state } from 'lit/decorators.js';
 import settings from '@carbon/ibmdotcom-utilities/es/utilities/settings/settings.js';
-import { carbonElement as customElement } from '@carbon/web-components/es/globals/decorators/carbon-element';
+import { carbonElement as customElement } from '@carbon/web-components/es/globals/decorators/carbon-element.js';
 import ShoppingCart20 from '@carbon/web-components/es/icons/shopping--cart/20.js';
 import styles from './masthead.scss';
 import LocaleAPI from '@carbon/ibmdotcom-services/es/services/Locale/Locale.js';
diff --git a/packages/web-components/src/components/masthead/masthead-l1.ts b/packages/web-components/src/components/masthead/masthead-l1.ts
index 17c6c8247a5..5d0f1a891e3 100644
--- a/packages/web-components/src/components/masthead/masthead-l1.ts
+++ b/packages/web-components/src/components/masthead/masthead-l1.ts
@@ -933,9 +933,19 @@ class C4DMastheadL1 extends StableSelectorMixin(LitElement) {
     }
     // Fall back to automated selection based on URL.
     else {
-      this.selectedElements = allLinks.filter(
-        (el) => el.href === currentUrlPath
-      );
+      this.selectedElements = allLinks.filter((el) => {
+        try {
+          const elURL = new URL(el.href);
+          const currURL = new URL(currentUrlPath || '');
+
+          // Compare url without query params.
+          return (
+            elURL.host === currURL.host && elURL.pathname === currURL.pathname
+          );
+        } catch (_error) {
+          return false;
+        }
+      });
     }
 
     if (this.selectedElements.length) {
diff --git a/packages/web-components/src/components/structured-list/structured-list-cell.ts b/packages/web-components/src/components/structured-list/structured-list-cell.ts
index 3f463b656cf..3e86f57ed1d 100644
--- a/packages/web-components/src/components/structured-list/structured-list-cell.ts
+++ b/packages/web-components/src/components/structured-list/structured-list-cell.ts
@@ -10,7 +10,7 @@
 import CDSStructuredListCell from '@carbon/web-components/es/components/structured-list/structured-list-cell.js';
 import { html } from 'lit';
 import { property } from 'lit/decorators.js';
-import { ifDefined } from 'lit/directives/if-defined';
+import { ifDefined } from 'lit/directives/if-defined.js';
 import Info16 from '@carbon/web-components/es/icons/information/16.js';
 import Checkmark20 from '@carbon/web-components/es/icons/checkmark/20.js';
 import Error20 from '@carbon/web-components/es/icons/error/20.js';
diff --git a/packages/web-components/src/components/tile/tile-group.ts b/packages/web-components/src/components/tile/tile-group.ts
index b0916530bd7..aa0bd8e77cc 100644
--- a/packages/web-components/src/components/tile/tile-group.ts
+++ b/packages/web-components/src/components/tile/tile-group.ts
@@ -8,7 +8,7 @@
  */
 
 import { LitElement, html } from 'lit';
-import { carbonElement as customElement } from '@carbon/web-components/es/globals/decorators/carbon-element';
+import { carbonElement as customElement } from '@carbon/web-components/es/globals/decorators/carbon-element.js';
 import settings from '@carbon/ibmdotcom-utilities/es/utilities/settings/settings.js';
 import styles from './tile.scss';
 
diff --git a/packages/web-components/src/components/tile/tile.ts b/packages/web-components/src/components/tile/tile.ts
index 4bdbb52e04a..a496420bf40 100644
--- a/packages/web-components/src/components/tile/tile.ts
+++ b/packages/web-components/src/components/tile/tile.ts
@@ -8,11 +8,11 @@
  */
 
 import { LitElement, html } from 'lit';
-import { property, state, query } from 'lit/decorators';
-import { classMap } from 'lit/directives/class-map';
-import { carbonElement as customElement } from '@carbon/web-components/es/globals/decorators/carbon-element';
+import { property, state, query } from 'lit/decorators.js';
+import { classMap } from 'lit/directives/class-map.js';
+import { carbonElement as customElement } from '@carbon/web-components/es/globals/decorators/carbon-element.js';
 import settings from '@carbon/ibmdotcom-utilities/es/utilities/settings/settings.js';
-import { ifDefined } from 'lit/directives/if-defined';
+import { ifDefined } from 'lit/directives/if-defined.js';
 import CTAMixin from '../../component-mixins/cta/cta';
 import VideoCTAMixin from '../../component-mixins/cta/video';
 import { CTA_TYPE } from '../cta/defs';
diff --git a/packages/web-components/src/globals/mixins/throttled-input.ts b/packages/web-components/src/globals/mixins/throttled-input.ts
index e0b7ed57cf4..364fdb72aaf 100644
--- a/packages/web-components/src/globals/mixins/throttled-input.ts
+++ b/packages/web-components/src/globals/mixins/throttled-input.ts
@@ -72,7 +72,7 @@ const ThrottledInputMixin = <T extends Constructor<HTMLElement>>(Base: T) => {
     /**
      * The throttle timeout to run query upon user input.
      */
-    inputTimeout = 200;
+    abstract inputTimeout: number;
 
     connectedCallback() {
       // TS seems to miss `HTMLElement.prototype.connectedCallback()` definition