chat-client/node_modules/showdown/test/issues/#523.leading-space-breaks-gfm-code-blocks.md

 ```javascript
var test = test;
function foo() {
  return 'bar';
}
 ```

  ```javascript
var test = test;
function foo() {
  return 'bar';
}
  ```

   ```javascript
var test = test;
function foo() {
  return 'bar';
}
   ```