I have a page that contains a Page Viewer web part. Each time the page loads, in both edit and view modes, I get a File Download dialog box asking "Do you want to save this file?", listing the correct filename to which I'm linking (e.g., foo.htm) with "yes" and "cancel" options. In the dialog box, the file is correctly identified as an HTML document.
I'm stumped. I cannot find any checkbox or settings to choose to "open html documents in browser" for the site, the page nor the library where the page is stored. While I can successfully override the "strict" rules for file handling, I'd be interested to know what, specifically, SP is seeing as a "rejection criterion" under strict rules. I'd prefer to fix that problem (which may be as stupidly simple as making sure all our files are *.html instead of *.htm, migrating the docs from a doc library to a wiki library etc.)
Has anyone else ever encountered this? Any hints or suggestions about what I can do to fix this?