Fix JSONC configuration files

CHANGELOG.md

@@ -12,6 +12,7 @@
 -   Fixed relative link detection for markdown links containing code in their label, #2606.
 -   Fixed an issue with packages mode where TypeDoc would use (much) more memory than required, #2607.
 -   TypeDoc will no longer crash when asked to render highlighted code for an unsupported language, #2609.
+-   `.jsonc` configuration files are now properly read as JSONC, rather than being passed to `require`.
 
 ### Thanks!
 

src/lib/utils/options/readers/typedoc.ts

@@ -69,7 +69,7 @@ export class TypeDocReader implements OptionsReader {
         seen.add(file);
 
         let fileContent: any;
-        if (file.endsWith(".json")) {
+        if (file.endsWith(".json") || file.endsWith(".jsonc")) {
             const readResult = ts.readConfigFile(normalizePath(file), (path) =>
                 FS.readFileSync(path, "utf-8"),
             );