>>> Even without that, though, I don't think there's a real issue here.
>>> If you're inside canvas code and want a breakpoint, use some other
>>> receiver - the comment in the #break method itself uses "nil break" as
>>> an example.
>> The original issue was that OB uses a flag icon to call attention to
>> senders of #halt and #break. In rendering methods, that's a false alarm.
>>
>> It seems like #break is only used by the tools, so it would better to
>> change that than Seaside.
> 
> Or just change the detection code to check if the receiver of #break
> is a variable or argument called html or renderer.

yes, I also wanted to go for that. In that case you confirm that almost all Seaside 
applications either use 'html' or 'renderer' as a name for the receiver of
#break?

David