Improved error handling when rendering templates, so no html leaks when a php error occurs.

Author: hostep

lib/internal/Magento/Framework/View/TemplateEngine/Php.php

@@ -70,7 +70,7 @@ public function render(BlockInterface $block, $fileName, array $dictionary = [])
             extract($dictionary, EXTR_SKIP);
             include $fileName;
             $this->_currentBlock = $tmpBlock;
-        } catch (\Exception $exception) {
+        } catch (\Throwable $exception) {
             ob_end_clean();
             throw $exception;
         }