message: Fix missing dom param to widgets.errorMessageBlock
diff: @@ -1275,7 +1275,7 @@ export function selectWorkspace (
  ;(button as any).style = buttonStyle
  button.textContent = `Start new ${noun} at this URI`
  button.addEventListener('click', function (_event) {
  - let newBase = baseField.value
  + let newBase = baseField.value.replace(' ', '%20') // do not re-encode in general, as % encodings may exist
  if (newBase.slice(-1) !== '/') {
  newBase += '/'
  }
  @@ -1369,7 +1369,7 @@ export function selectWorkspace (
  logInLoadPreferences(context) // kick off async operation
  .then(displayOptions)
  .catch(err => {
  - box.appendChild(widgets.errorMessageBlock(err))
  + box.appendChild(widgets.errorMessageBlock(context.dom, err))
  })
  return box // return the box element, while login proceeds
  