i236 sanitizer probe (harmless)

PROBE-A plain-onerror:

PROBE-B entity-onerror:

PROBE-C entity-onload:

PROBE-D plain-onclick:

z

PROBE-E entity-js-a: Y5

PROBE-F plain-js: Y6

PROBE-G decimal-entity-onerror:

PROBE-H hex-no-semi-onerror:

PROBE-I tab-in-onerror-name:

PROBE-J iframe-entity-src:

PROBE-K autofocus-onfocus: