FLASH: moock no-script detection: the saga continues

[Colin Moock]

in software development they tell you every fix to a bug creates a different

bug. i'm beginning to believe that ;)


the last time i updated the flash 4 no-script detection everyone here

reported no problems, but i since discovered that the fix for flash 4 users

caused a problem for flash 3 users. 


the short version is that i've fixed the movie yet again, and have tested it

on mac, pc, all browsers from 3 up and all versions of flash from 2 up. so if

you've already implemented the technique, you should now upgrade to the

latest version (1.3 for those following along). if you're not using the

technique, but you have some free time, it'd be great if you could test the

latest version out by visiting:

http://www.moock.org/webdesign/flash/detection/flash4noscript/

(mac, modem, & flash 2/3 users wanted). report bugs/problems to

colin_moockiceinc [dot] com

....now here's the long version for those who missed the original thread or

are interested in the details:


captain's log...stardate etc etc

july 14, 1999: no-script detector posted. consists of 3 simple actions: get

url as an expression leading to flash 4 content, get url in a movie clip

leading to flash 3 content, and plain get url on main timeline leading to

flash 2 content.


july 14, 1999: added a few frames to the beginning of the movie because it

was getting skipped in some cases under netscape.


july 22, 1999 a: added a preloader to the movie so all the frames would be

guaranteed to be present before the movie started to play. the get url

actions were still getting skipped on slower connections. 


july 22, 1999 b: later that day. added version-specific stop actions after

the flash 4 and 3 get urls because on slow connections, the movie continued

playing and executed all three get urls, meaning that flash 4 users on modems

tended to get either the flash 3 or flash 2 upgrade page. 


july 27, 1999: i noticed that the flash 3 player was now stalling before the

flash 3 get url was being executed. on investigation, i found that the way

flash 3 ignores actionscript is to actually execute the last action within an

if statement. this was causing the stop action i added on july 22nd(b) to

prevent the flash 3 player from continuing. i've adjusted the actionscript so

it now issues a play command as the last statement if the f4 variable

evaluates to anything other than "true".


tia for bug reports. it really looks like this may be the last little

problem, but i guess i've said that before :)


colin


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