Hi,

I noticed that this html string for a radio button is not readonly in the generated pdf as expected.

<input type='radio' name='radio-input' readonly='' checked='' />
Expected behaviour:
The radio button in the generated pdf should be readonly.

Meanwhile for a checkbox readonly works as expected
<input type='checkbox' name='checker' readonly='' checked='' />

Setup
As suggested in the last release note I use the "FastMode".
PdfRendererBuilder builder = new PdfRendererBuilder().useFastMode();

openhtmltopdf version = 0.0.1-RC18