Content Model: Fix A tag without href

packages/roosterjs-content-model/lib/domToModel/utils/getDefaultStyle.ts

@@ -12,5 +12,12 @@ export function getDefaultStyle(
     element: HTMLElement,
     context: DomToModelContext
 ): Partial<CSSStyleDeclaration> {
-    return context.defaultStyles[element.tagName.toLowerCase() as keyof DefaultStyleMap] || {};
+    let tag = element.tagName.toLowerCase() as keyof DefaultStyleMap;
+
+    if (tag == 'a' && !element.hasAttribute('href')) {
+        // For A tag without Href, treat it as SPAN since it will not be rendered as a link
+        tag = 'span';
+    }
+
+    return context.defaultStyles[tag] || {};
 }

packages/roosterjs-content-model/test/domToModel/utils/parseFormatTest.ts

@@ -75,4 +75,37 @@ describe('Default styles', () => {
     it('Default style for U', () => {
         runTest('u', { textDecoration: 'underline' });
     });
+
+    it('Default style for A with href', () => {
+        const element = document.createElement('a');
+        const defaultContext = createDomToModelContext();
+        const segmentFormat = {};
+        const linkFormat = {};
+
+        element.href = 'http://test.com';
+
+        parseFormat(element, defaultContext.formatParsers.segment, segmentFormat, defaultContext);
+        parseFormat(element, defaultContext.formatParsers.link, linkFormat, defaultContext);
+
+        expect(segmentFormat).toEqual({
+            underline: true,
+            textColor: '__hyperLinkColor',
+        });
+        expect(linkFormat).toEqual({
+            href: 'http://test.com',
+        });
+    });
+
+    it('Default style for A without href', () => {
+        const element = document.createElement('a');
+        const defaultContext = createDomToModelContext();
+        const segmentFormat = {};
+        const linkFormat = {};
+
+        parseFormat(element, defaultContext.formatParsers.segment, segmentFormat, defaultContext);
+        parseFormat(element, defaultContext.formatParsers.link, linkFormat, defaultContext);
+
+        expect(segmentFormat).toEqual({});
+        expect(linkFormat).toEqual({});
+    });
 });