diff --git a/superset/assets/javascripts/explorev2/components/ChartContainer.jsx b/superset/assets/javascripts/explorev2/components/ChartContainer.jsx
index 640527427c75e..f6ea3469fb091 100644
--- a/superset/assets/javascripts/explorev2/components/ChartContainer.jsx
+++ b/superset/assets/javascripts/explorev2/components/ChartContainer.jsx
@@ -263,8 +263,8 @@ class ChartContainer extends React.PureComponent {
 
               <div className="pull-right">
                 {this.props.chartStatus === 'success' &&
-                 this.props.queryResponse &&
-                 this.props.queryResponse.is_cached &&
+                this.props.queryResponse &&
+                this.props.queryResponse.is_cached &&
                   <TooltipWrapper
                     tooltip="Loaded from cache. Click to force refresh"
                     label="cache-desc"
@@ -275,7 +275,7 @@ class ChartContainer extends React.PureComponent {
                     >
                       cached
                     </Label>
-                 </TooltipWrapper>
+                  </TooltipWrapper>
                 }
                 <Timer
                   startTime={this.props.chartUpdateStartTime}
diff --git a/superset/assets/javascripts/explorev2/components/DisplayQueryButton.jsx b/superset/assets/javascripts/explorev2/components/DisplayQueryButton.jsx
index f98b0aeabf34d..a8aea850f71ed 100644
--- a/superset/assets/javascripts/explorev2/components/DisplayQueryButton.jsx
+++ b/superset/assets/javascripts/explorev2/components/DisplayQueryButton.jsx
@@ -28,19 +28,27 @@ export default class DisplayQueryButton extends React.PureComponent {
     this.beforeOpen = this.beforeOpen.bind(this);
     this.fetchQuery = this.fetchQuery.bind(this);
   }
+  setStateFromQueryResponse() {
+    const qr = this.props.queryResponse;
+    this.setState({
+      language: qr.language,
+      query: qr.query,
+      isLoading: false,
+    });
+  }
   fetchQuery() {
     this.setState({ isLoading: true });
     $.ajax({
       type: 'GET',
       url: this.props.queryEndpoint,
-      success: data => {
+      success: (data) => {
         this.setState({
           language: data.language,
           query: data.query,
           isLoading: false,
         });
       },
-      error: data => {
+      error: (data) => {
         this.setState({
           error: data.error,
           isLoading: false,
@@ -48,14 +56,6 @@ export default class DisplayQueryButton extends React.PureComponent {
       },
     });
   }
-  setStateFromQueryResponse() {
-    const qr = this.props.queryResponse;
-    this.setState({
-      language: qr.language,
-      query: qr.query,
-      isLoading: false,
-    });
-  }
   beforeOpen() {
     if (this.props.chartStatus === 'loading' || this.props.chartStatus === null) {
       this.fetchQuery();
diff --git a/superset/assets/spec/javascripts/explorev2/components/DisplayQueryButton_spec.jsx b/superset/assets/spec/javascripts/explorev2/components/DisplayQueryButton_spec.jsx
index 43268508935cc..bdff00e777d86 100644
--- a/superset/assets/spec/javascripts/explorev2/components/DisplayQueryButton_spec.jsx
+++ b/superset/assets/spec/javascripts/explorev2/components/DisplayQueryButton_spec.jsx
@@ -3,7 +3,7 @@ import { expect } from 'chai';
 import { describe, it } from 'mocha';
 import { mount } from 'enzyme';
 import { Modal } from 'react-bootstrap';
-import ModalTrigger from './../../../../javascripts/components/ModalTrigger.jsx';
+import ModalTrigger from './../../../../javascripts/components/ModalTrigger';
 
 import DisplayQueryButton from '../../../../javascripts/explorev2/components/DisplayQueryButton';
 
diff --git a/superset/db_engine_specs.py b/superset/db_engine_specs.py
index bb211d92fa9f0..2d6d28d7e9ca4 100644
--- a/superset/db_engine_specs.py
+++ b/superset/db_engine_specs.py
@@ -429,18 +429,6 @@ def fetch_result_sets(cls, db, datasource_type, force=False):
                 row['table_schema'], row['table_name']))
         return result_sets
 
-    @classmethod
-    def extract_error_message(cls, e):
-        """Extract error message for queries"""
-        logging.error(e)
-        print("-="*100)
-        print("-="*100)
-        print("-="*100)
-        print("-="*100)
-        print(type(e))
-        print(dir(e))
-        return error_msg_from_exception(e)
-
     @classmethod
     def extra_table_metadata(cls, database, table_name, schema_name):
         indexes = database.get_indexes(table_name, schema_name)