File: javascript-url-srcdoc-cross-origin-iframe-inheritance-helper.sub.html

package info (click to toggle)
firefox-esr 91.13.0esr-1~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 3,375,652 kB
  • sloc: cpp: 5,762,054; javascript: 5,481,714; ansic: 3,121,191; python: 851,492; asm: 331,172; xml: 178,949; java: 155,554; sh: 63,704; makefile: 20,127; perl: 12,825; yacc: 4,583; cs: 3,846; objc: 3,026; lex: 1,720; exp: 762; pascal: 635; php: 436; lisp: 260; awk: 231; ruby: 103; sed: 53; sql: 46; csh: 45
file content (24 lines) | stat: -rw-r--r-- 911 bytes parent folder | download | duplicates (25) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <meta http-equiv="Content-Security-Policy" content="frame-src 'self'">
  <script>
    // The following is the content of a srcdoc iframe. It contains:
    // - a script that catches the frame-src securitypolicyviolation event and
    // forwards the information to the parent,
    // - a cross-origin iframe.
    let doc = `
      <script>
        window.addEventListener("securitypolicyviolation", e => {
          if (e.violatedDirective === "frame-src") {
            window.top.postMessage("frame blocked", "*");
          }
        });
      </scr` + `ipt>
      <iframe src="http://{{hosts[alt][]}}:{{ports[http][0]}}/content-security-policy/inheritance/support/postmessage-top.html"></iframe>`;
    doc = doc.replaceAll('"', "\\\'");

    const js_url = "javascript:'<iframe srcdoc=\""+ doc +"\">'";
    window.open(js_url, "_self");
  </script>
</head>