Fix large pdf generation #6

Author: clementmas

bin/browser.cjs

@@ -56,7 +56,7 @@ const getOutput = async (request, page = null) => {
     if (page) {
         return JSON.stringify(output);
     }
-    
+
     // this will allow adding additional error info (only reach this point when there's an exception)
     return output;
 };

src/Browsershot.php

@@ -244,7 +244,7 @@ public function waitForFunction(string $function, ?Polling $polling = null, int
         return $this->setOption('function', $function);
     }
 
-    public function waitForSelector(string $selector, array $options = [])
+    public function waitForSelector(string $selector, array $options = []): static
     {
         $this->setOption('waitForSelector', $selector);