Corruption of non-HTML files with oracle_smp_chronos.js script element

Question

When serving a JavaScript file through the portal, the server always appends:
<SCRIPT SRC="/oracle_smp_chronos/oracle_smp_chronos.js"></SCRIPT>
which causes a JavaScript syntax error in the browser.
Why does it append this HTML element to a JS file ?
How can I stop it ?
Mik

Answer 1

The script only uses the event to find the HTMLEntity where the handler was originally called - it then uses this reference to locate the original handler which it replaced - and calls it.
Things really start to get messy when you use a LINK to submit a form....the original javascript probably does something like this:
if ((!form.onsubmit) || form.onsubmit()) form.submit();
Chances are, the original onclick handler did not pass the event, and the event does not get passed to form.onsubmit(). Even if it did that just pushes the error further down - because oracle_smp_chronos.js replaces the onsubmit for forms too. So what happens is:
user clicks link, this calls Oracles handler
Oracles Handler does its thing, then identifies the link from the event and calls the original handler
Original Handler calls form.onsubmit, passing on the event
but since the onsubmit method has been replaced, its actually calling Oracle's handler again, which does its thing again, then sees that the event references the LINK (not the form) so it calls the backed up Original handler
Original Handler calls form.onsubmit()
...and so on until the stack overflows.
In the version I've got, this only happens where oracle_smp_chronos thinks the browser is Netscape Navigator or one of its descendants. There is a seperate branch of code for MSIE - it uses 'this' to track back to the original code, ignoring the event. Ironicaly, the MSIE code runs fine in Mozilla 5, and any version of Firefox (I don't have a copy of Navigator v4 to test) so a better solution would be to change the browser identification code to treat everything as MSIE
HTH
C.