diff --git a/docs/devGuide/development/writingPlugins.md b/docs/devGuide/development/writingPlugins.md
index 7af6a5f529..05f0a91172 100644
--- a/docs/devGuide/development/writingPlugins.md
+++ b/docs/devGuide/development/writingPlugins.md
@@ -160,6 +160,9 @@ module.exports = {
         },
       ],
     },
+    'my-custom-element': {
+      isCustomElement: true,
+    },
   },
 }
 ```
@@ -170,7 +173,8 @@ Tag properties are top-level properties of the tag configuration object. The fol
 
 Property | Values | Default | Remarks
 :----- | ------- | ---- | ----
-`isSpecial` | `true` or `false` | `false` | Allows configuring whether any tag is to be parsed "specially" like a `<script>` or `<style>` tag. This allows configuring custom tags that may contain conflicting syntax, such as the `<puml>` tag used for UML diagram generation.
+`isSpecial` | `true` or `false` | `false` | When `true`, the content inside the tag is treated as raw text and will **not** be parsed as HTML or Markdown (similar to `<script>` or `<style>` tags). Use this for tags containing non-HTML syntax that should not be processed (e.g. `<puml>` for diagrams). Use `false` for standard components that wrap renderable content.
+`isCustomElement` | `true` or `false` | `false` | Tells the Vue compiler to ignore this tag during compilation, to prevent warnings about unknown custom elements. Useful for plugins that introduce custom HTML elements (e.g. Web Components) that should not be resolved as Vue components.
 `attributes` | Array of attribute configurations | `[]` | Contains the attribute configurations of the tags.
 
 **Attribute Properties**
diff --git a/packages/core/src/Page/PageVueServerRenderer.ts b/packages/core/src/Page/PageVueServerRenderer.ts
index b2f52e0786..ee58740d8f 100644
--- a/packages/core/src/Page/PageVueServerRenderer.ts
+++ b/packages/core/src/Page/PageVueServerRenderer.ts
@@ -14,10 +14,28 @@ import fs from 'fs-extra';
 import * as logger from '../utils/logger';
 import type { PageConfig, PageAssets } from './PageConfig';
 import type { Page } from '.';
+import { PluginManager } from '../plugins/PluginManager';
+
 /* eslint-enable import/no-import-module-exports */
 
 let bundle = require('@markbind/core-web/dist/js/vueCommonAppFactory.min');
 
+let customElementTagsCache: Set<string> | undefined;
+
+/**
+ * Retrieves the set of tags that should be treated as custom elements by the Vue compiler.
+ * These are tags defined in plugins with isCustomElement: true.
+ */
+function getCustomElementTags(): Set<string> {
+  if (customElementTagsCache) {
+    return customElementTagsCache;
+  }
+  customElementTagsCache = new Set(Object.entries(PluginManager.tagConfig)
+    .filter(([, config]) => config.isCustomElement)
+    .map(([tagName]) => tagName));
+  return customElementTagsCache;
+}
+
 /**
  * Compiles a Vue page template into a JavaScript function returning render function
  * and saves it as a script file so that the browser can access to
@@ -32,11 +50,14 @@ let bundle = require('@markbind/core-web/dist/js/vueCommonAppFactory.min');
  */
 async function compileVuePageCreateAndReturnScript(
   content: string, pageConfig: PageConfig, pageAsset: PageAssets) {
+  const customElementTags = getCustomElementTags();
+
   const compilerOptions: CompilerOptions = {
     runtimeModuleName: 'vue',
     runtimeGlobalName: 'Vue',
     mode: 'function',
     whitespace: 'preserve',
+    isCustomElement: tag => customElementTags.has(tag),
   };
 
   const templateOptions: SFCTemplateCompileOptions = {
diff --git a/packages/core/src/html/linkProcessor.ts b/packages/core/src/html/linkProcessor.ts
index aa64efe9c9..2a3f844775 100644
--- a/packages/core/src/html/linkProcessor.ts
+++ b/packages/core/src/html/linkProcessor.ts
@@ -91,13 +91,16 @@ export function convertRelativeLinks(node: MbNode, cwf: string, rootPath: string
     _convertRelativeLink(node, cwf, rootPath, baseUrl, resourcePath, linkAttribName);
   }
 
-  if (node.name in pluginTagConfig && pluginTagConfig[node.name].attributes) {
-    pluginTagConfig[node.name].attributes.forEach((attrConfig) => {
-      if (attrConfig.isRelative && node.attribs) {
-        const resourcePath = node.attribs[attrConfig.name];
-        _convertRelativeLink(node, cwf, rootPath, baseUrl, resourcePath, attrConfig.name);
-      }
-    });
+  if (node.name in pluginTagConfig) {
+    const tagConfig = pluginTagConfig[node.name];
+    if (tagConfig.attributes) {
+      tagConfig.attributes.forEach((attrConfig) => {
+        if (attrConfig.isRelative && node.attribs) {
+          const resourcePath = node.attribs[attrConfig.name];
+          _convertRelativeLink(node, cwf, rootPath, baseUrl, resourcePath, attrConfig.name);
+        }
+      });
+    }
   }
 }
 
diff --git a/packages/core/src/plugins/Plugin.ts b/packages/core/src/plugins/Plugin.ts
index 38837e42ae..970024abba 100644
--- a/packages/core/src/plugins/Plugin.ts
+++ b/packages/core/src/plugins/Plugin.ts
@@ -25,8 +25,9 @@ type TagConfigAttributes = {
 };
 
 export type TagConfigs = {
-  isSpecial: boolean,
-  attributes: TagConfigAttributes[]
+  isSpecial?: boolean,
+  attributes?: TagConfigAttributes[],
+  isCustomElement?: boolean,
 };
 
 /**
diff --git a/packages/core/test/unit/Page/PageVueServerRenderer.test.ts b/packages/core/test/unit/Page/PageVueServerRenderer.test.ts
new file mode 100644
index 0000000000..6cd4a1fceb
--- /dev/null
+++ b/packages/core/test/unit/Page/PageVueServerRenderer.test.ts
@@ -0,0 +1,91 @@
+jest.mock('../../../src/plugins/PluginManager');
+jest.mock('vue/compiler-sfc');
+jest.mock('fs-extra');
+
+describe('PageVueServerRenderer', () => {
+  let pageVueServerRenderer: any;
+  let PluginManager: any;
+  let compileTemplate: any;
+
+  beforeEach(async () => {
+    jest.resetModules();
+
+    // Re-acquire dependencies for the new module context (As Tags are cached in PluginManager)
+    PluginManager = (await import('../../../src/plugins/PluginManager')).PluginManager;
+    compileTemplate = (await import('vue/compiler-sfc')).compileTemplate;
+    pageVueServerRenderer = (await import('../../../src/Page/PageVueServerRenderer')).pageVueServerRenderer;
+  });
+
+  afterEach(() => {
+    jest.clearAllMocks();
+  });
+
+  describe('compileVuePageCreateAndReturnScript', () => {
+    test('correctly filters isCustomElement flag elements, '
+        + 'passes to Vue compiler isCustomElement option', async () => {
+      // Setup
+      (PluginManager as any).tagConfig = {
+        'my-custom-element': {
+          isCustomElement: true,
+        },
+        'regular-element': {
+          isCustomElement: false,
+        },
+      };
+
+      (compileTemplate as jest.Mock).mockReturnValue({
+        code: '/* compiled code */',
+      });
+
+      const pageConfig = {
+        sourcePath: 'test.md',
+        resultPath: 'test.html',
+      };
+      const pageAsset = {};
+
+      // Execute
+      await pageVueServerRenderer.compileVuePageCreateAndReturnScript(
+        'content',
+        pageConfig as any,
+        pageAsset as any,
+      );
+
+      // Verify
+      expect(compileTemplate).toHaveBeenCalled();
+
+      const { compilerOptions } = (compileTemplate as jest.Mock).mock.calls[0][0];
+      const { isCustomElement } = compilerOptions;
+
+      expect(isCustomElement('my-custom-element')).toBe(true);
+      expect(isCustomElement('regular-element')).toBe(false);
+      expect(isCustomElement('div')).toBe(false);
+    });
+
+    test('handles empty tagConfig or tags without isCustomElement property', async () => {
+      (PluginManager as any).tagConfig = {
+        'some-tag': {
+          // isSpecial and attributes are optional now
+        },
+      };
+
+      (compileTemplate as jest.Mock).mockReturnValue({
+        code: '/* compiled code */',
+      });
+
+      const pageConfig = { sourcePath: 'test.md', resultPath: 'test.html' };
+      const pageAsset = {};
+
+      await pageVueServerRenderer.compileVuePageCreateAndReturnScript(
+        'content',
+        pageConfig as any,
+        pageAsset as any,
+      );
+
+      const { compilerOptions } = (compileTemplate as jest.Mock).mock.calls[0][0];
+      const { isCustomElement } = compilerOptions;
+
+      expect(isCustomElement('some-tag')).toBe(false);
+      expect(isCustomElement('any-tag')).toBe(false);
+    });
+  });
+});