A short cry for help

A friend, currently in the antipodes on a round the world trip, is having trouble posting to his Google blog. He gets a repeated error message from Blogger that includes the code bx-g90x6h when he tries to post. I've looked online and it seems that quite a few people are having this problem, but, although some people can get around it by using a different web browser, no one has offered a solution that works for everyone.

I am wondering whether any of my readers have encountered this problem and know of a solution. If so, could you leave a message in the comments?

My friend is using a recent iPad with the Safari browser.