Merge pull request #165 from nadundesilva/master

Remove go back from UnknownError component

components/portal/src/components/common/error/UnknownError.js

@@ -16,7 +16,6 @@
  * under the License.
  */
 
-import ArrowBack from "@material-ui/icons/ArrowBack";
 import Button from "@material-ui/core/Button/Button";
 import CelleryError from "../../../img/celleryError.jpg";
 import Home from "@material-ui/icons/Home";
@@ -65,7 +64,7 @@ const styles = (theme) => ({
  }
 });
 
-const UnknownError = ({classes, history, title, description, showNavigationButtons}) => (
+const UnknownError = ({classes, title, description, showNavigationButtons}) => (
  <div className={classes.unknownErrorContainer}>
  <div className={classes.unknownError}>
  <img src={CelleryError} className={classes.unknownErrorImg} alt={"Unknown Error"}/>
@@ -85,11 +84,6 @@ const UnknownError = ({classes, history, title, description, showNavigationButto
  showNavigationButtons
  ? (
  <div className={classes.navigationButtonsContainer}>
- <Button variant={"outlined"} size={"small"} className={classes.navigationButton}
- onClick={() => history.goBack()}>
- <ArrowBack className={classes.navigationButtonIcon}/>
- Go Back
- </Button>
  <Button variant={"outlined"} size={"small"} className={classes.navigationButton}
  onClick={() => window.location.assign("/")}>
  <Home fontSize={"small"} className={classes.navigationButtonIcon}/>
@@ -105,9 +99,6 @@ const UnknownError = ({classes, history, title, description, showNavigationButto
 
 UnknownError.propTypes = {
  classes: PropTypes.object.isRequired,
- history: PropTypes.shape({
- goBack: PropTypes.func.isRequired
- }),
  title: PropTypes.string,
  description: PropTypes.string,
  showNavigationButtons: PropTypes.bool