Before I interview I mention that I am uncomfortable with whiteboards. I prefer pen and paper. It's faster to write and feels a bit natural.

Only one company denied me the request and I didn't go ahead for them. Their loss.

I've also found having a github profile where you've files issues on projects and made a couple of commits really helps the chances. It gives more data than a resume.

At one interview, the interviewer read some of my commits and he said "I don't have any doubts you can code, but I wanna ask you about design". He went on to ask why I did things in a certain way.

But seriously. "Say no to coding on whiteboards".