Added: Abstract public share embed support

app/embeds/Abstract.js

@@ -0,0 +1,27 @@
+// @flow
+import * as React from 'react';
+import Frame from './components/Frame';
+
+type Props = {
+  url: string,
+  matches: string[],
+};
+
+export default class Abstract extends React.Component<Props> {
+  static ENABLED = [
+    new RegExp('https?://share.(?:go)?abstract.com/(.*)$'),
+    new RegExp('https?://app.(?:go)?abstract.com/(?:share|embed)/(.*)$'),
+  ];
+
+  render() {
+    const { matches } = this.props;
+    const shareId = matches[1];
+
+    return (
+      <Frame
+        src={`https://app.goabstract.com/embed/${shareId}`}
+        title={`Abstract (${shareId})`}
+      />
+    );
+  }
+}