Adding scrape files for testing

server/tests/fixtures/html/sized-images.html

@@ -0,0 +1,9 @@
+<!doctype html>
+<html>
+<head><title>Sized</title></head>
+<body>
+  <img src="https://cdn.example.com/thumb.jpg" width="80" height="60">
+  <img src="https://cdn.example.com/big.jpg" width="1200" height="800">
+  <img src="https://cdn.example.com/mid.jpg" width="400" height="300">
+</body>
+</html>