Instant Web Publishing Guide

Table Of Contents
32 FileMaker Instant Web Publishing Guide
Web viewer design considerations
If your FileMaker Pro solution contains web viewers, consider the following points for Instant Web Publishing:
1 Content in a web viewer may have unintended effects on Instant Web Publishing. Therefore you must
test the websites you want to display within a web viewer. For example, a URL (either a URL calculated
from field data or a URL that the user specifies by clicking a link in a web viewer) can specify a page
that has the
target=top attribute. This attribute causes the page to completely replace Instant Web
Publishing in the web browser window.
1 Web users might be able to interact with web viewer content in a limited way, even if you clear the Allow
interaction with web viewer checkbox in the Web Viewer Setup dialog box. Limited interaction can also
occur even if a web viewer is defined as a button.
1 Web pages that load code — such as JavaScript or references to Java, ActiveX, Flash, or other plug-ins —
run that code within the user’s web browser. Some web technologies may not be supported or may be
supported differently in the browsers supported by Instant Web Publishing. Security settings within the
user’s browser may also prevent the use of these plug-ins.
1 If the URL calculated by a web viewer does not include a colon (:), then Instant Web Publishing
automatically adds the scheme http:// to the beginning of the URL. To avoid errors, include the
appropriate scheme in the web address when you set up a web viewer.
1 The Back and Forward actions of the Set Web Viewer script step are not supported in Instant Web
Publishing. See
“Script steps tips and considerations” on page 33. Web users can use the shortcut menu’s
Back and Forward commands instead. However, if a layout has more than one web viewer, the shortcut
menu works only with the web viewer that has most recently changed from one page to another, not
necessarily the one that your mouse pointer is over.
1 Instant Web Publishing does not support web viewers whose content is itself published by Instant Web
Publishing. No web page displays in a web viewer if the web viewer URL contains “/fmi/iwp”.
There might be other ways in which web viewers behave differently for web users and FileMaker Pro users.
Additionally, web viewers might behave differently in the different web browsers supported by Instant Web
Publishing. For the latest information on web viewers, see www.filemaker.com/support/technologies.