Optional
customUsed for tests. Clickable and requested subcomponents will be suffixed with "-[ComponentName]".
Optional
sizeSize of the progress bar. Default is "default", but can be set to "thin" for a slimmer version.
Optional
valueThe value of the progress indicator for the determinate variant. Value between 0 and 100.
Alternative text for screen reader for the loader. Make it concrete and informative, e.g. "Loading departures, please wait...". Mandatory for WCAG 2.1.