Add structurizr.com to the allow-list to show contents in an iframe…

… in the preview (#1510)

CHANGELOG.adoc

@@ -15,6 +15,7 @@ This document provides a high-level view of the changes introduced by release.
 - Avoid NPE when searching for Java references (#1582)
 - Avoid invalidated objects when searching for Java references (#1583)
 - Close files before converting file from Markdown to AsciiDoc (#1584)
+- Add `structurizr.com` to the allow-list to show contents in an iframe in the preview (#1510)
 
 === 0.41.10
 

src/main/java/org/asciidoc/intellij/editor/javafx/PreviewStaticServer.java

@@ -81,7 +81,7 @@ public static String createCSP(@NotNull Map<String, String> attributes) {
         + "img-src file: data: localfile: *; connect-src 'none'; font-src *; " +
         "object-src data: file: localfile: *;" + // used for interactive SVGs
         "media-src 'none'; child-src 'none'; " +
-        "frame-src 'self' https://player.vimeo.com/ https://www.youtube.com/"; // used for vimeo/youtube iframes
+        "frame-src 'self' https://player.vimeo.com/ https://www.youtube.com/ https://structurizr.com/"; // used for vimeo/youtube iframes
     } else {
       // this will restrict external content as much as possible
       result = "default-src 'none'; script-src 'unsafe-inline' 'unsafe-eval' " + Urls.parseEncoded("http://localhost:" + BuiltInServerManager.getInstance().getPort() + PREFIX + "/scripts/").toExternalForm() + "; "