The 509 changelog says the following about profiling in the webclient:
Profiling options have been improved for the webclient. The classic browser interface can be used in a popup browser:
byond://?debug=profile;window=mypopup
Or, mostly unformatted output can be sent to a control, paving the way for a dedicated profiler control:
byond://?debug=profile;output=mycontrol
byond://?debug=profile;switch=off;output=mycontrol
Which is great, except it is either broken or doesn't really explain how to actually access the profiler. For example:
src << link("?debug=profile;window=profiler")
If I'm reading it right, the above code should open up some kind of profiler. However, it doesn't do anything. Is there something I'm missing, or should I post a bug report?