fix: graph loading indicator

README.md

@@ -169,6 +169,8 @@ All properties are optional.
 | labels_secondary | `hover` | `true` / `false` / `hover` | Display secondary Y-axis labels.
 | name_adaptive_color | `false` | `true` / `false` | Make the name color adapt with the primary entity color.
 | icon_adaptive_color | `false` | `true` / `false` | Make the icon color adapt with the primary entity color.
+| loading_indicator | `true` | `true` / `false` | Show loading indicator while attempting to retrieve a history.
+
 
 #### Line color object
 See [dynamic line color](#dynamic-line-color) for example usage.

src/main.js

@@ -323,8 +323,11 @@ class MiniGraphCard extends LitElement {
   }
 
   renderGraph() {
-    const ready = this.entity[0] && this.Graph[0]._history !== undefined;
-
+    const ready = (this.entity[0] && !this.Graph.some(
+      (element, index) => element._history === undefined
+      && this.config.entities[index].show_graph !== false,
+    ))
+    || this.config.show.loading_indicator === false;
     return this.config.show.graph ? html`
       <div class="graph">
         ${ready ? html`