serverBadResponse

The server can return a bad response (e.g. non DICOM P10 byte stream). You can check for this using the browser debugger window on the network tab. On chrome, you can click the request that is for the DICOM P10 image and then click the "preview" tab. Bad responses are often some kind of error message return as HTML, JSON or XML and that should be visible if that is the case.

On chrome, the preview tab only shows printable characters, non printable characters are shown with a red dot. DICOM is a binary protocol that contains many non printable characters so you should see many of them along with some recognizable strings (e.g. UIDs, patient names, etc). DICOM P10 byte streams always start with 128 zeros (which show up as red dots) followed by the string "DICM".