rules:
- document-base-url.html: [base]
- multiple-base.sub.html: [base]
- document-base-url-about-srcdoc.https.window.js: [iframe-srcdoc]
- document-base-url-changes-about-srcdoc.https.window.js: [iframe-srcdoc]
- nontraditional-about-srcdoc.html: [iframe-srcdoc]
