[Judicature] AWS WAF 'challenge' (HTTP 202) for https://scholarship.law.duke.edu/context/judicature/article/1000/viewcontent/Judicature_Vol099No1_Summer2015.pdf; retrying with fallback UA
[Judicature] AWS WAF 'challenge' (HTTP 202) for https://scholarship.law.duke.edu/context/judicature/article/1002/viewcontent/Judicature_Vol099No3_Winter_2015.pdf; retrying with fallback UA
[Judicature] AWS WAF 'challenge' (HTTP 202) for https://scholarship.law.duke.edu/context/judicature/article/1001/viewcontent/Judicature_Vol099No2_Autumn2015.pdf; retrying with fallback UA
[Judicature] AWS WAF 'challenge' (HTTP 202) for https://scholarship.law.duke.edu/context/judicature/article/1003/viewcontent/Judicature_Vol100No1_Spring2016.pdf; retrying with fallback UA
[Judicature] AWS WAF 'challenge' (HTTP 202) for https://scholarship.law.duke.edu/context/judicature/article/1004/viewcontent/Judicature_Vol100No2_Summer2016.pdf; retrying with fallback UA