I’m trying to use a regular expression in a string widget to control user’s input. It works in Knime analytics - I get the error message ‘Input does not match the expected pattern’ when I enter an invalid value, but when I publish the workflow on the web portal, this check does not work anymore. The workflow hangs up when I enter an invalid value.
My regular expression is ([0-9])(.)()? to enter value like x.y where y is either 0 or 5.
Could you help? Would you have a working example?