1 files changed, 28 insertions, 2 deletions
diff --git a/app/javascript/flavours/glitch/components/column_back_button.js b/app/javascript/flavours/glitch/components/column_back_button.js
index 82556d22e..05688f867 100644
--- a/app/javascript/flavours/glitch/components/column_back_button.js
+++ b/app/javascript/flavours/glitch/components/column_back_button.js
@@ -1,6 +1,8 @@
 import React from 'react';
 import { FormattedMessage } from 'react-intl';
 import PropTypes from 'prop-types';
+import Icon from 'flavours/glitch/components/icon';
+import { createPortal } from 'react-dom';
 
 export default class ColumnBackButton extends React.PureComponent {
 
@@ -8,6 +10,10 @@ export default class ColumnBackButton extends React.PureComponent {
     router: PropTypes.object,
   };
 
+  static propTypes = {
+    multiColumn: PropTypes.bool,
+  };
+
   handleClick = (event) => {
     // if history is exhausted, or we would leave mastodon, just go to root.
     if (window.history.state) {
@@ -23,12 +29,32 @@ export default class ColumnBackButton extends React.PureComponent {
   }
 
   render () {
-    return (
+    const { multiColumn } = this.props;
+
+    const component = (
       <button onClick={this.handleClick} className='column-back-button'>
-        <i className='fa fa-fw fa-chevron-left column-back-button__icon' />
+        <Icon id='chevron-left' className='column-back-button__icon' fixedWidth />
         <FormattedMessage id='column_back_button.label' defaultMessage='Back' />
       </button>
     );
+
+    if (multiColumn) {
+      return component;
+    } else {
+      // The portal container and the component may be rendered to the DOM in
+      // the same React render pass, so the container might not be available at
+      // the time `render()` is called.
+      const container = document.getElementById('tabs-bar__portal');
+      if (container === null) {
+        // The container wasn't available, force a re-render so that the
+        // component can eventually be inserted in the container and not scroll
+        // with the rest of the area.
+        this.forceUpdate();
+        return component;
+      } else {
+        return createPortal(component, container);
+      }
+    }
   }
 
 }