Hello, we’re running into an issue with the file attachment input, seemingly since v4.0 went live. On Mac OS X in either Firefox or Safari, attempting to attach a file with the fields set to any of the three file types (Default, Text Documents, Images) results in the following error:
File type is not supported.
Chrome for Mac successfully attaches image files, but only accepts PDFs for the Text document file type (docx files are grayed out in the file selection diaglog and cannot be selected). On Windows 7 using Firefox or Chrome, file attachments work properly without error.
Is this a known issue, and if so, is there a workaround?