diff --git a/Makefile b/Makefile
index b394e86..3e1bf8c 100644
--- a/Makefile
+++ b/Makefile
@@ -91,6 +91,7 @@ i18n:
 
 .PHONY: cypress-run
 cypress-run:
+	rm -rf .nyc_output
 	NODE_ENV=development  $(NODE_MODULES)/cypress/bin/cypress run
 
 .PHONY: cypress-open
diff --git a/cypress/e2e/01-style-block-basics.cy.js b/cypress/e2e/01-style-block-basics.cy.js
index 8184845..6bafb6e 100644
--- a/cypress/e2e/01-style-block-basics.cy.js
+++ b/cypress/e2e/01-style-block-basics.cy.js
@@ -30,6 +30,22 @@ describe('Blocks Tests', () => {
     ).click();
     cy.get('.github-picker.color-picker div[title="#9dc6d4"]').click();
 
+    cy.get(
+      '.inline.field.field-wrapper-shadowDepth .slider-widget-wrapper .slider-knob.single',
+    ).dblclick();
+    cy.get(
+      '.inline.field.field-wrapper-shadowDepth .slider-widget-wrapper input',
+    ).type('3{enter}');
+
+    cy.get(
+      '.inline.field.field-wrapper-shadowDepth .slider-widget-wrapper .slider-knob.single',
+    ).trigger('mousedown', { which: 1 });
+    cy.get(
+      '.inline.field.field-wrapper-shadowDepth .slider-widget-wrapper .semantic_ui_range_inner',
+    )
+      .trigger('mousemove', { clientX: 500 })
+      .trigger('mouseup');
+
     cy.get('[contenteditable=true]').first().type('{enter}');
 
     // Save page
diff --git a/src/helpers.test.js b/src/helpers.test.js
new file mode 100644
index 0000000..35e19a7
--- /dev/null
+++ b/src/helpers.test.js
@@ -0,0 +1,89 @@
+import { getFieldURL } from './helpers';
+
+describe('getFieldURL', () => {
+  it('handles a URL type object with type and value', () => {
+    const data = {
+      '@type': 'URL',
+      value: 'value_url',
+      url: 'url_url',
+      href: 'href_url',
+    };
+    expect(getFieldURL(data)).toEqual('value_url');
+  });
+
+  it('handles an object with type and url', () => {
+    const data = {
+      '@type': 'URL',
+      url: 'url_url',
+      href: 'href_url',
+    };
+    expect(getFieldURL(data)).toEqual('url_url');
+  });
+
+  it('handles an object with type and href', () => {
+    const data = {
+      '@type': 'URL',
+      href: 'href_url',
+    };
+    expect(getFieldURL(data)).toEqual('href_url');
+  });
+
+  it('handles an object with type and no value, url and href', () => {
+    const data = {
+      '@type': 'URL',
+    };
+    expect(getFieldURL(data)).toEqual({ '@type': 'URL' });
+  });
+
+  it('handles an object without a specific type and url', () => {
+    const data = {
+      url: 'url_url',
+      href: 'href_url',
+    };
+    expect(getFieldURL(data)).toEqual('url_url');
+  });
+
+  it('handles an object without a specific type and href', () => {
+    const data = {
+      href: 'href_url',
+    };
+    expect(getFieldURL(data)).toEqual('href_url');
+  });
+
+  it('handles an object without a specific type and no id, url, href', () => {
+    const data = {
+      test: 'test_url',
+    };
+    expect(getFieldURL(data)).toEqual({
+      test: 'test_url',
+    });
+  });
+
+  it('handles an array', () => {
+    const data = [
+      {
+        '@type': 'URL',
+        value: 'value_url',
+        url: 'url_url',
+        href: 'href_url',
+      },
+      {
+        '@id': 'id_url',
+        url: 'url_url',
+        href: 'href_url',
+      },
+    ];
+    expect(getFieldURL(data)).toEqual(['value_url', 'id_url']);
+  });
+
+  it('handles a string', () => {
+    const data = '/some/url';
+    expect(getFieldURL(data)).toEqual('/some/url');
+  });
+
+  it('returns the data unchanged for non-object/non-array/non-string inputs', () => {
+    expect(getFieldURL(42)).toEqual(42);
+    expect(getFieldURL(undefined)).toEqual(undefined);
+    expect(getFieldURL(null)).toEqual(null);
+  });
+});