diff --git a/src/components/ContentItems/ContentItems.tsx b/src/components/ContentItems/ContentItems.tsx
index 5d299ff9..aa8c4376 100644
--- a/src/components/ContentItems/ContentItems.tsx
+++ b/src/components/ContentItems/ContentItems.tsx
@@ -4,48 +4,25 @@ import * as React from 'react';
 import { AdvancedMarkdown } from '../Markdown/AdvancedMarkdown';
 
 import { H1, H2, MiddlePanel, Row, Section, ShareLink } from '../../common-elements';
-import { MDXComponentMeta } from '../../services/MarkdownRenderer';
 import { ContentItemModel } from '../../services/MenuBuilder';
 import { GroupModel, OperationModel } from '../../services/models';
 import { Operation } from '../Operation/Operation';
-import { SecurityDefs } from '../SecuritySchemes/SecuritySchemes';
-
-const DEFAULT_ALLOWED_COMPONENTS = {
-  'security-definitions': {
-    component: SecurityDefs,
-    propsSelector: _store => ({
-      securitySchemes: _store!.spec.securitySchemes,
-    }),
-  },
-};
 
 @observer
 export class ContentItems extends React.Component<{
   items: ContentItemModel[];
-  allowedMdComponents?: Dict<MDXComponentMeta>;
 }> {
-  static defaultProps = {
-    allowedMdComponents: DEFAULT_ALLOWED_COMPONENTS,
-  };
-
   render() {
     const items = this.props.items;
     if (items.length === 0) {
       return null;
     }
-    return items.map(item => (
-      <ContentItem
-        item={item}
-        key={item.id}
-        allowedMdComponents={this.props.allowedMdComponents!}
-      />
-    ));
+    return items.map(item => <ContentItem item={item} key={item.id} />);
   }
 }
 
 export interface ContentItemProps {
   item: ContentItemModel;
-  allowedMdComponents: Dict<MDXComponentMeta>;
 }
 
 @observer
@@ -76,9 +53,7 @@ export class ContentItem extends React.Component<ContentItemProps> {
         <Section id={item.id} underlined={item.type === 'operation'}>
           {content}
         </Section>
-        {item.items && (
-          <ContentItems items={item.items} allowedMdComponents={this.props.allowedMdComponents} />
-        )}
+        {item.items && <ContentItems items={item.items} />}
       </>
     );
   }
@@ -90,7 +65,6 @@ const middlePanelWrap = component => <MiddlePanel>{component}</MiddlePanel>;
 export class SectionItem extends React.Component<ContentItemProps> {
   render() {
     const { name, description, level } = this.props.item as GroupModel;
-    const { allowedMdComponents } = this.props;
 
     const Header = level === 2 ? H2 : H1;
     return (
@@ -103,11 +77,7 @@ export class SectionItem extends React.Component<ContentItemProps> {
             </Header>
           </MiddlePanel>
         </Row>
-        <AdvancedMarkdown
-          allowedComponents={allowedMdComponents}
-          source={description || ''}
-          htmlWrap={middlePanelWrap}
-        />
+        <AdvancedMarkdown source={description || ''} htmlWrap={middlePanelWrap} />
       </>
     );
   }
diff --git a/src/components/Markdown/AdvancedMarkdown.tsx b/src/components/Markdown/AdvancedMarkdown.tsx
index cba6232f..b75631d3 100644
--- a/src/components/Markdown/AdvancedMarkdown.tsx
+++ b/src/components/Markdown/AdvancedMarkdown.tsx
@@ -1,29 +1,35 @@
 import * as React from 'react';
 
-import { AppStore, MarkdownRenderer, MDXComponentMeta } from '../../services';
+import { AppStore, MarkdownRenderer, RedocNormalizedOptions } from '../../services';
 import { BaseMarkdownProps } from './Markdown';
 import { SanitizedMarkdownHTML } from './SanitizedMdBlock';
 
+import { OptionsConsumer } from '../OptionsProvider';
 import { StoreConsumer } from '../StoreBuilder';
 
 export interface AdvancedMarkdownProps extends BaseMarkdownProps {
-  allowedComponents: Dict<MDXComponentMeta>;
   htmlWrap?: (part: JSX.Element) => JSX.Element;
 }
 
 export class AdvancedMarkdown extends React.Component<AdvancedMarkdownProps> {
   render() {
-    return <StoreConsumer>{store => this.renderWithStore(store)}</StoreConsumer>;
+    return (
+      <OptionsConsumer>
+        {options => (
+          <StoreConsumer>{store => this.renderWithOptionsAndStore(options, store)}</StoreConsumer>
+        )}
+      </OptionsConsumer>
+    );
   }
 
-  renderWithStore(store?: AppStore) {
-    const { allowedComponents, source, htmlWrap = i => i } = this.props;
+  renderWithOptionsAndStore(options: RedocNormalizedOptions, store?: AppStore) {
+    const { source, htmlWrap = i => i } = this.props;
     if (!store) {
       throw new Error('When using componentes in markdown, store prop must be provided');
     }
 
-    const renderer = new MarkdownRenderer();
-    const parts = renderer.renderMdWithComponents(source, allowedComponents);
+    const renderer = new MarkdownRenderer(options);
+    const parts = renderer.renderMdWithComponents(source);
 
     if (!parts.length) {
       return null;
diff --git a/src/components/Redoc/Redoc.tsx b/src/components/Redoc/Redoc.tsx
index 323cdbd4..2b43e77d 100644
--- a/src/components/Redoc/Redoc.tsx
+++ b/src/components/Redoc/Redoc.tsx
@@ -2,12 +2,12 @@ import * as PropTypes from 'prop-types';
 import * as React from 'react';
 
 import { ThemeProvider } from '../../styled-components';
+import { OptionsProvider } from '../OptionsProvider';
 
 import { AppStore } from '../../services';
 import { ApiInfo } from '../ApiInfo/';
 import { ApiLogo } from '../ApiLogo/ApiLogo';
 import { ContentItems } from '../ContentItems/ContentItems';
-import { OptionsProvider } from '../OptionsProvider';
 import { SideMenu } from '../SideMenu/SideMenu';
 import { StickyResponsiveSidebar } from '../StickySidebar/StickyResponsiveSidebar';
 import { ApiContentWrap, BackgroundStub, RedocWrap } from './styled.elements';
diff --git a/src/services/AppStore.ts b/src/services/AppStore.ts
index 1d3614f0..81419b15 100644
--- a/src/services/AppStore.ts
+++ b/src/services/AppStore.ts
@@ -10,6 +10,9 @@ import { RedocNormalizedOptions, RedocRawOptions } from './RedocNormalizedOption
 import { ScrollService } from './ScrollService';
 import { SearchStore } from './SearchStore';
 
+import { SecurityDefs } from '../components/SecuritySchemes/SecuritySchemes';
+import { SECURITY_DEFINITIONS_COMPONENT_NAME } from '../utils/openapi';
+
 export interface StoreState {
   menu: {
     activeItemIdx: number;
@@ -64,7 +67,7 @@ export class AppStore {
     createSearchIndex: boolean = true,
   ) {
     this.rawOptions = options;
-    this.options = new RedocNormalizedOptions(options);
+    this.options = new RedocNormalizedOptions(options, DEFAULT_OPTIONS);
     this.scroll = new ScrollService(this.options);
 
     // update position statically based on hash (in case of SSR)
@@ -137,3 +140,14 @@ export class AppStore {
     this.marker.mark();
   }
 }
+
+const DEFAULT_OPTIONS: RedocRawOptions = {
+  allowedMdComponents: {
+    [SECURITY_DEFINITIONS_COMPONENT_NAME]: {
+      component: SecurityDefs,
+      propsSelector: (store: AppStore) => ({
+        securitySchemes: store.spec.securitySchemes,
+      }),
+    },
+  },
+};
diff --git a/src/services/MarkdownRenderer.ts b/src/services/MarkdownRenderer.ts
index bb83efb7..3494415b 100644
--- a/src/services/MarkdownRenderer.ts
+++ b/src/services/MarkdownRenderer.ts
@@ -2,6 +2,7 @@ import * as marked from 'marked';
 
 import { highlight, safeSlugify } from '../utils';
 import { AppStore } from './AppStore';
+import { RedocNormalizedOptions } from './RedocNormalizedOptions';
 
 const renderer = new marked.Renderer();
 
@@ -49,7 +50,7 @@ export class MarkdownRenderer {
   private headingEnhanceRenderer: marked.Renderer;
   private originalHeadingRule: typeof marked.Renderer.prototype.heading;
 
-  constructor() {
+  constructor(public options?: RedocNormalizedOptions) {
     this.headingEnhanceRenderer = new marked.Renderer();
     this.originalHeadingRule = this.headingEnhanceRenderer.heading.bind(
       this.headingEnhanceRenderer,
@@ -148,10 +149,8 @@ export class MarkdownRenderer {
 
   // TODO: rewrite this completelly! Regexp-based 👎
   // Use marked ecosystem
-  renderMdWithComponents(
-    rawText: string,
-    components?: Dict<MDXComponentMeta>,
-  ): Array<string | MDXComponentMeta> {
+  renderMdWithComponents(rawText: string): Array<string | MDXComponentMeta> {
+    const components = this.options && this.options.allowedMdComponents;
     if (!components || Object.keys(components).length === 0) {
       return [this.renderMd(rawText)];
     }
@@ -160,7 +159,7 @@ export class MarkdownRenderer {
     const names = '(?:' + Object.keys(components).join('|') + ')';
 
     const anyCompRegexp = new RegExp(
-      COMPONENT_REGEXP.replace(/{component}/g, '(' + names + ')'),
+      COMPONENT_REGEXP.replace(/{component}/g, '(' + names + '.*?)'),
       'gmi',
     );
     let match = anyCompRegexp.exec(rawText);
@@ -169,7 +168,10 @@ export class MarkdownRenderer {
       match = anyCompRegexp.exec(rawText);
     }
 
-    const splitCompRegexp = new RegExp(COMPONENT_REGEXP.replace(/{component}/g, names), 'mi');
+    const splitCompRegexp = new RegExp(
+      COMPONENT_REGEXP.replace(/{component}/g, names + '.*?'),
+      'mi',
+    );
     const htmlParts = rawText.split(splitCompRegexp);
     const res: any[] = [];
     for (let i = 0; i < htmlParts.length; i++) {
diff --git a/src/services/RedocNormalizedOptions.ts b/src/services/RedocNormalizedOptions.ts
index 8c3e0462..851d4b1b 100644
--- a/src/services/RedocNormalizedOptions.ts
+++ b/src/services/RedocNormalizedOptions.ts
@@ -2,6 +2,8 @@ import defaultTheme, { ResolvedThemeInterface, resolveTheme, ThemeInterface } fr
 import { querySelector } from '../utils/dom';
 import { isNumeric, mergeObjects } from '../utils/helpers';
 
+import { MDXComponentMeta } from './MarkdownRenderer';
+
 export interface RedocRawOptions {
   theme?: ThemeInterface;
   scrollYOffset?: number | string | (() => number);
@@ -17,6 +19,8 @@ export interface RedocRawOptions {
   disableSearch?: boolean | string;
 
   unstable_ignoreMimeParameters?: boolean;
+
+  allowedMdComponents?: Dict<MDXComponentMeta>;
 }
 
 function argValueToBoolean(val?: string | boolean): boolean {
@@ -98,9 +102,11 @@ export class RedocNormalizedOptions {
 
   /* tslint:disable-next-line */
   unstable_ignoreMimeParameters: boolean;
+  allowedMdComponents: Dict<MDXComponentMeta>;
 
-  constructor(raw: RedocRawOptions) {
+  constructor(raw: RedocRawOptions, defaults: RedocRawOptions = {}) {
     let hook;
+    raw = { ...defaults, ...raw };
     if (raw.theme && raw.theme.extensionsHook) {
       hook = raw.theme.extensionsHook;
       raw.theme.extensionsHook = undefined;
@@ -120,5 +126,7 @@ export class RedocNormalizedOptions {
     this.disableSearch = argValueToBoolean(raw.disableSearch);
 
     this.unstable_ignoreMimeParameters = argValueToBoolean(raw.unstable_ignoreMimeParameters);
+
+    this.allowedMdComponents = raw.allowedMdComponents || {};
   }
 }
diff --git a/src/services/__tests__/MarkdownRenderer.test.ts b/src/services/__tests__/MarkdownRenderer.test.ts
index 4ed71494..89f308c6 100644
--- a/src/services/__tests__/MarkdownRenderer.test.ts
+++ b/src/services/__tests__/MarkdownRenderer.test.ts
@@ -1,9 +1,21 @@
-import { MarkdownRenderer } from '../MarkdownRenderer';
+import { MarkdownRenderer, MDXComponentMeta } from '../MarkdownRenderer';
+import { RedocNormalizedOptions } from '../RedocNormalizedOptions';
+
+const TestComponent = () => null;
 
 describe('Markdown renderer', () => {
   let renderer: MarkdownRenderer;
   beforeEach(() => {
-    renderer = new MarkdownRenderer();
+    renderer = new MarkdownRenderer(
+      new RedocNormalizedOptions({
+        allowedMdComponents: {
+          'security-definitions': {
+            component: TestComponent,
+            propsSelector: () => ({}),
+          },
+        },
+      }),
+    );
   });
 
   test('should return a level-1 heading even though only level-2 is present', () => {
@@ -19,4 +31,33 @@ describe('Markdown renderer', () => {
     expect(headings[0].items).toBeDefined();
     expect(headings[0].items).toHaveLength(1);
   });
+
+  test('renderMdWithComponents should work with legacy syntax', () => {
+    const source = 'Hello!\n<!-- ReDoc-Inject: <security-definitions> -->\nBye';
+    const parts = renderer.renderMdWithComponents(source);
+    expect(parts).toHaveLength(3);
+    expect(parts[0]).toEqual('<p>Hello!</p>\n');
+    expect(typeof parts[1]).toEqual('object');
+    expect((parts[1] as MDXComponentMeta).component).toEqual(TestComponent);
+    expect(parts[2]).toEqual('<p>Bye</p>\n');
+  });
+
+  test('renderMdWithComponents should work with mdx-like syntax', () => {
+    const source = 'Hello!\n<security-definitions/>\nBye';
+    const parts = renderer.renderMdWithComponents(source);
+    expect(parts).toHaveLength(3);
+    expect(parts[0]).toEqual('<p>Hello!</p>\n');
+    expect(typeof parts[1]).toEqual('object');
+    expect((parts[1] as MDXComponentMeta).component).toBe(TestComponent);
+    expect(parts[2]).toEqual('<p>Bye</p>\n');
+  });
+
+  test('renderMdWithComponents should parse attribute names', () => {
+    const source = '<security-definitions pointer={"test"}/>';
+    const parts = renderer.renderMdWithComponents(source);
+    expect(parts).toHaveLength(1);
+    const part = parts[0] as MDXComponentMeta;
+    expect(part.component).toBe(TestComponent);
+    expect(part.attrs).toEqual({ pointer: 'test' });
+  });
 });