Comments in JSON format are not allowed

JSON should be all data, comments of the form '//…' or '/*…*/' are not allowed.

If you use "//" or "/* */" to comment out Additional options (which is in JSON format) in the Service Portal Widget Instance, the page cannot be loaded.

These are some symptoms you can encounter:

• The pages that contain the widget instance are stuck in loading.
• Error messages similar to these can be found in the logs:

  org.json.JSONException: JSONObject["value"] not found.: java.lang.RuntimeException: org.json.JSONException: JSONObject["value"] not found.: com.glide.rest.handler.impl.ServiceHandlerImpl.handleInvocationTargetException(ServiceHandlerImpl.java:79)
  com.glide.rest.handler.impl.ServiceHandlerImpl.invokeService(ServiceHandlerImpl.java:50)
  com.glide.rest.processors.RESTAPIProcessor.process(RESTAPIProcessor.java:271)
  com.glide.processors.AProcessor.runProcessor(AProcessor.java:483)
  com.glide.processors.AProcessor.processTransaction(AProcessor.java:205)
  com.glide.processors.ProcessorRegistry.process0(ProcessorRegistry.java:178)
  com.glide.processors.ProcessorRegistry.process(ProcessorRegistry.java:167)
  com.glide.ui.GlideServletTransaction.process(GlideServletTransaction.java:31)
  com.glide.sys.Transaction.run(Transaction.java:2038)
  java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
  java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
  java.lang.Thread.run(Thread.java:748)

This article on StackOverflow contains useful information: Can comments be used in JSON?