Improve error message on load error

packages/mindplot/src/components/LocalStorageManager.js

@@ -45,6 +45,9 @@ class LocalStorageManager extends PersistenceManager {
         success(response) {
           xml = response;
         },
+        error(xhr, ajaxOptions, thrownError) {
+          console.error(`Request error => status:${xhr.status} ,thrownError: ${thrownError}`);
+        },
       });
       // If I could not load it from a file, hard code one.
       if (xml == null) {

packages/mindplot/src/components/RestPersistenceManager.js

@@ -108,6 +108,9 @@ class RESTPersistenceManager extends PersistenceManager {
       async: false,
       method: 'post',
       headers: { 'Content-Type': 'application/json; charset=utf-8', Accept: 'application/json' },
+      error(xhr, ajaxOptions, thrownError) {
+        console.error(`Request error => status:${xhr.status} ,thrownError: ${thrownError}`);
+      },
     });
   }
 
@@ -119,6 +122,9 @@ class RESTPersistenceManager extends PersistenceManager {
       method: 'put',
       headers: { 'Content-Type': 'text/plain' },
       data: 'false',
+      error(xhr, ajaxOptions, thrownError) {
+        console.error(`Request error => status:${xhr.status} ,thrownError: ${thrownError}`);
+      },
     });
   }
 
@@ -147,11 +153,14 @@ class RESTPersistenceManager extends PersistenceManager {
       success(responseText) {
         xml = responseText;
       },
+      error(xhr, ajaxOptions, thrownError) {
+        console.error(`Request error => status:${xhr.status} ,thrownError: ${thrownError}`);
+      },
     });
 
     // If I could not load it from a file, hard code one.
     if (xml == null) {
-      throw new Error('Map could not be loaded');
+      throw new Error(`Map with id ${mapId} could not be loaded`);
     }
 
     return xml;