Fix isInternalUrl for subdomain support

Refactor / reduce plumbing

app/components/CopyToClipboard.js

@@ -0,0 +1,34 @@
+// @flow
+import * as React from 'react';
+import copy from 'copy-to-clipboard';
+
+type Props = {
+  text: string,
+  children?: React.Node,
+  onClick?: () => *,
+  onCopy: () => *,
+};
+
+class CopyToClipboard extends React.PureComponent<Props> {
+  onClick = (ev: SyntheticEvent<*>) => {
+    const { text, onCopy, children } = this.props;
+    const elem = React.Children.only(children);
+    copy(text, {
+      debug: !!__DEV__,
+    });
+
+    if (onCopy) onCopy();
+
+    if (elem && elem.props && typeof elem.props.onClick === 'function') {
+      elem.props.onClick(ev);
+    }
+  };
+
+  render() {
+    const { text: _text, onCopy: _onCopy, children, ...rest } = this.props;
+    const elem = React.Children.only(children);
+    return React.cloneElement(elem, { ...rest, onClick: this.onClick });
+  }
+}
+
+export default CopyToClipboard;