Merge pull request nubasedev#284 from thaichor/remove-markdown-when-save-image-return-false

remove image markdown when upload image fail

Author: andrerpena

src/commands/default-commands/save-image-command.tsx

@@ -79,8 +79,7 @@ export const saveImageCommand: Command = {
           end: initialState.selection.start + placeHolder.length
         });
 
-        const realImageMarkdown = `${breaksBefore}![image](${imageUrl})`;
-
+        const realImageMarkdown = imageUrl ? `${breaksBefore}![image](${imageUrl})` : "";
         const selectionDelta = realImageMarkdown.length - placeHolder.length;
 
         textApi.replaceSelection(realImageMarkdown);