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The images below should load.<br>
<img src="http://127.0.0.1:8000/resources/square100.png"><br>
<img src="http://127.0.0.1:8000/resources/square100.png?abcabcdallowlist"><br>
<img src="http://127.0.0.1:8000/resources/square100.png?abccccccc"><br>
<img src="http://127.0.0.1:8000/resources/square100.png?defffffff"><br>
<img src="http://127.0.0.1:8000/resources/square100.png?jkljkljkl"><br>
<img src="http://127.0.0.1:8000/resources/square100.png?pqrabcdef"><br>
<img src="http://127.0.0.1:8000/resources/square100.png?wxybc"><br>
<img src="http://127.0.0.1:8000/resources/square100.png?acbxyxyxyxyxy"><br>
<img src="http://127.0.0.1:8000/resources/square100.png?abcdefjklpqrwxyacdacbbcghmosvabacbxy"><br>

The images below should be blocked.<br>
<img src="http://localhost:8000/resources/square100.png?abcabc"><br>
<img src="http://localhost:8000/resources/square100.png?abccabc"><br>
<img src="http://localhost:8000/resources/square100.png?defghi"><br>
<img src="http://localhost:8000/resources/square100.png?defgghi"><br>
<img src="http://localhost:8000/resources/square100.png?jklmno"><br>
<img src="http://localhost:8000/resources/square100.png?jkljklmno"><br>
<img src="http://localhost:8000/resources/square100.png?pqrstv"><br>
<img src="http://localhost:8000/resources/square100.png?pqrabcstv"><br>
<img src="http://localhost:8000/resources/square100.png?wxyabc"><br>
<img src="http://localhost:8000/resources/square100.png?wxydefabc"><br>
<img src="http://localhost:8000/resources/square100.png?acbwxy"><br>
<img src="http://localhost:8000/resources/square100.png?abcacbdefabcdjklallowlistwxy"><br>
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