diff --git a/src/components/modals/LoadingModal.jsx b/src/components/modals/LoadingModal.jsx
new file mode 100644
index 00000000..42b8ecaf
--- /dev/null
+++ b/src/components/modals/LoadingModal.jsx
@@ -0,0 +1,49 @@
+import React from 'react'
+import PropTypes from 'prop-types'
+
+import Button from '../Button'
+import Modal from './Modal'
+
+
+class LoadingModal extends React.Component {
+  static propTypes = {
+    isOpen: PropTypes.bool.isRequired,
+    onCancel: PropTypes.func.isRequired,
+    title: PropTypes.string.isRequired,
+    message: PropTypes.node.isRequired,
+  }
+
+  constructor(props) {
+    super(props);
+  }
+
+  underlayOnClick(e) {
+    // This stops click events falling through to underlying modals.
+    e.stopPropagation();
+  }
+
+  render() {
+    return <Modal
+      data-wd-key="loading-modal"
+      isOpen={this.props.isOpen}
+      underlayClickExits={false}
+      underlayProps={{
+        onClick: (e) => underlayProps(e)
+      }}
+      closeable={false}
+      title={this.props.title}
+      onOpenToggle={() => this.props.onCancel()}
+    >
+      <p>
+        {this.props.message}
+      </p>
+      <p className="maputnik-dialog__buttons">
+        <Button onClick={(e) => this.props.onCancel(e)}>
+          Cancel
+        </Button>
+      </p>
+    </Modal>
+  }
+}
+
+export default LoadingModal
diff --git a/src/components/modals/Modal.jsx b/src/components/modals/Modal.jsx
index 2a4a97c9..58bbbdcd 100644
--- a/src/components/modals/Modal.jsx
+++ b/src/components/modals/Modal.jsx
@@ -11,6 +11,12 @@ class Modal extends React.Component {
     title: PropTypes.string.isRequired,
     onOpenToggle: PropTypes.func.isRequired,
     children: PropTypes.node,
+    underlayClickExits: PropTypes.bool,
+    underlayProps: PropTypes.object,
+  }
+
+  static defaultProps = {
+    underlayClickExits: true
   }
 
   getApplicationNode() {
@@ -21,6 +27,8 @@ class Modal extends React.Component {
     if(this.props.isOpen) {
       return <AriaModal
         titleText={this.props.title}
+        underlayClickExits={this.props.underlayClickExits}
+        underlayProps={this.props.underlayProps}
         getApplicationNode={this.getApplicationNode}
         data-wd-key={this.props["data-wd-key"]}
         verticallyCenter={true}
diff --git a/src/components/modals/OpenModal.jsx b/src/components/modals/OpenModal.jsx
index c31ffd3d..d9df74c1 100644
--- a/src/components/modals/OpenModal.jsx
+++ b/src/components/modals/OpenModal.jsx
@@ -1,5 +1,6 @@
 import React from 'react'
 import PropTypes from 'prop-types'
+import LoadingModal from './LoadingModal'
 import Modal from './Modal'
 import Button from '../Button'
 import FileReaderInput from 'react-file-reader-input'
@@ -60,13 +61,33 @@ class OpenModal extends React.Component {
     })
   }
 
+  onCancelActiveRequest(e) {
+    // Else the click propagates to the underlying modal
+    if(e) e.stopPropagation();
+
+    if(this.state.activeRequest) {
+      this.state.activeRequest.abort();
+      this.setState({
+        activeRequest: null,
+        activeRequestUrl: null
+      });
+    }
+  }
+
   onStyleSelect(styleUrl) {
     this.clearError();
 
-    request({
+    const reqOpts = {
       url: styleUrl,
       withCredentials: false,
-    }, (error, response, body) => {
+    }
+
+    const activeRequest = request(reqOpts, (error, response, body) => {
+      this.setState({
+        activeRequest: null,
+        activeRequestUrl: null
+      });
+
         if (!error && response.statusCode == 200) {
           const mapStyle = style.ensureStyleValidity(JSON.parse(body))
           console.log('Loaded style ', mapStyle.id)
@@ -76,6 +97,11 @@ class OpenModal extends React.Component {
           console.warn('Could not open the style URL', styleUrl)
         }
     })
+
+    this.setState({
+      activeRequest: activeRequest,
+      activeRequestUrl: reqOpts.url
+    })
   }
 
   onOpenUrl() {
@@ -169,6 +195,13 @@ class OpenModal extends React.Component {
         {styleOptions}
         </div>
       </section>
+
+      <LoadingModal
+        isOpen={!!this.state.activeRequest}
+        title={'Loading style'}
+        onCancel={(e) => this.onCancelActiveRequest(e)}
+        message={"Loading: "+this.state.activeRequestUrl}
+      />
     </Modal>
   }
 }
diff --git a/src/styles/_components.scss b/src/styles/_components.scss
index 048307de..170d855d 100644
--- a/src/styles/_components.scss
+++ b/src/styles/_components.scss
@@ -135,3 +135,9 @@
     color: $color-red;
   }
 }
+
+.maputnik-dialog {
+  &__buttons {
+    text-align: right;
+  }
+}