I have drupal based website and problem with RSS feeds. The problem occurs when feeds are set to titles with teasers or full text, everything is okay when they're set to titles only. But, I prefer titles with teasers. When I follow link to /rss.xml with Firefox it asks whether I want to open or save it. If I choose open with Firefox it says: ...\temp\rss.xml could not be opened, because an unknown error occurred. Try saving to disk and then opening the file. When I try to open it with IE 8 it says: This feed contains code errors. Under more info it says: Invalid xml declaration. Line: 3 Character: 3 <?xml version="1.0" encoding="utf-8"?> There are no problems with Safari. Any ideas what could be the cause for this? I'm subscribed to my feeds and receive them normally.
Update: I saved rss.xml with titles + teasers to compare in notepad differences between that one and rss.xml with titles only. The one with teasers has first two lines in source code empty, so probably that is the problem. When I open it (saved to local) in Firefox I get error: XML Parsing Error: XML or text declaration not at start of entity. What is the cause for this? How could I fix that?