I'm building a library that uploads certain items to ArcGIS Portal or ArcGIS Online using addItem.
I found out that if the title contains either < or >, the title is stripped after that character. This is not just a display issue, I checked using the ArcGIS Assistant, and can confirm that the actual title of the item is modified
My first thought was that I had to escape the form parameters in the POST request, and replace < with %3C etc, but that didn't fix it.
Eventually it turned out that changing < to < and > to > does fix the issue, but this is strange because we are not in an HTML or XML context.
However, this made me wonder, which other special characters do I need to escape? I'm now using the .NET method HttpUtility.HtmlEncode() which encodes &<>\
(Note, I already found out that a + in a title is completely impossible due to an almost two year old bug)
