grafana/k6 · error

parsing element input value options: %w

Error message

parsing element input value options: %w

What it means

Thrown synchronously by ElementHandle.inputValue() when its options fail to parse. inputValue() parses common.ElementHandleBaseOptions (force, noWaitAfter, timeout), whose Parse in common/element_handle_options.go is all lenient coercion and always returns nil, so this wrap is defensive and effectively unreachable in current k6. Seeing it usually means an older xk6-browser Parse implementation or a regression.

Source

Thrown at internal/js/modules/k6/browser/browser/element_handle_mapping.go:119

			}
			return promise(vu, func() (any, error) {
				return nil, eh.Hover(popts) //nolint:wrapcheck
			}), nil
		},
		"innerHTML": func() *sobek.Promise {
			return promise(vu, func() (any, error) {
				return eh.InnerHTML() //nolint:wrapcheck
			})
		},
		"innerText": func() *sobek.Promise {
			return promise(vu, func() (any, error) {
				return eh.InnerText() //nolint:wrapcheck
			})
		},
		"inputValue": func(opts sobek.Value) (*sobek.Promise, error) {
			popts := common.NewElementHandleBaseOptions(eh.DefaultTimeout())
			if err := popts.Parse(vu.Context(), opts); err != nil {
				return nil, fmt.Errorf("parsing element input value options: %w", err)
			}
			return promise(vu, func() (any, error) {
				return eh.InputValue(popts) //nolint:wrapcheck
			}), nil
		},
		"isChecked": func() *sobek.Promise {
			return promise(vu, func() (any, error) {
				return eh.IsChecked() //nolint:wrapcheck
			})
		},
		"isDisabled": func() *sobek.Promise {
			return promise(vu, func() (any, error) {
				return eh.IsDisabled() //nolint:wrapcheck
			})
		},
		"isEditable": func() *sobek.Promise {
			return promise(vu, func() (any, error) {
				return eh.IsEditable() //nolint:wrapcheck

View on GitHub (pinned to 93accf6570)

Solutions

  1. Use only { force, noWaitAfter, timeout } with a millisecond number for timeout
  2. Confirm the element is an input/textarea/select before calling inputValue
  3. Upgrade k6 to a current version where base Parse cannot fail, then re-test
  4. Read the wrapped cause after the colon to identify the failing field in your build

Example fix

// before
const v = await el.inputValue({ timeout: '30s' });

// after
const v = await el.inputValue({ timeout: 30000 });
Defensive patterns

Strategy: try-catch

Validate before calling

if (opts?.timeout !== undefined && !Number.isFinite(Number(opts.timeout))) {
  throw new Error('inputValue(): timeout must be a number of milliseconds');
}
const tag = await el.getProperty('tagName').then(r => r.jsonValue());
if (!/INPUT|TEXTAREA|SELECT/.test(String(tag))) {
  throw new Error(`inputValue(): ${tag} is not an input element`);
}

Type guard

function isInputValueOpts(o) {
  if (o == null) return true;
  return (o.force === undefined || typeof o.force === 'boolean') &&
         (o.noWaitAfter === undefined || typeof o.noWaitAfter === 'boolean') &&
         (o.timeout === undefined || Number.isFinite(o.timeout));
}

Try / catch

try {
  const v = await el.inputValue(opts);
} catch (e) {
  if (/parsing element input value options/.test(String(e.message))) {
    console.log(`fix inputValue options: ${e.message}`);
  } else throw e; // e.g. 'node is not an <input> element' happens inside the promise
}

Prevention

When it happens

Trigger: In current code none: force/noWaitAfter/timeout coerce any JS value and unknown keys are ignored. Older builds could fail when the whole options object could not be exported onto the struct.

Common situations: Scripts written for old xk6-browser releases; passing a timeout in seconds or as '30s' (silently coerced to a wrong duration rather than erroring); confusing this parse error with the later inside-promise error 'node is not an <input> element'.

Related errors


AI-assisted analysis of grafana/k6@93accf6570 (2026-08-15). Data as JSON: /api/errors/cc1e691676e6c26f. Report an issue: GitHub.