Re-Usable Web Component Limitations

Java and JavaScript Access Limitations

Due to security restrictions imposed by the web browsers, the following limitations apply:

1. Web pages containing re-usable components cannot reference Java applets served up from your web site via the <APPLET> tag.
2. Web pages containing re-usable components cannot perform client-side JavaScript access to any other web page loaded into the web browser that has been served up from your site, and vice-versa.

There are ways to work around these limitations. If you wish to re-use these components and are prevented by one of these limitations, please contact us at [email protected]. .

Earthscape II Limitations

The pop-up option of Earthscape II works in Netscape and Internet Explorer browsers versions 3 and 4; however, the embedded option does not work reliably in Internet Explorer 3, and will only work in Netscape 3 if the <CEONet:EarthscapeII> tag is NOT placed inside an t <> tag.

Also, due to the fact that the Internet Explorer 3 does not permit Java applets to communicate to JavaScript, certain kinds of events are never returned:

1. Feature selection events: captured by the onSelect( ) event handler function.
2. Region of interest update events.

HTML Parsing Limitation

Do not place "CEONet" RUC tags inside of HTML comments. The Discovery Portal parser will interpret the RUC tags whether they are inside comments or not.