There is TAB in front of all of HTML or XML view output in my Yii.
example:
<?xml version="1.0" encoding="UTF-8"?>
<rss xmlns:content="http://purl.org/rss/1.0/modules/content/" version="2.0">
or
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
This tab caused me a XML error:
Invalid xml declaration.
Line: 1 Character: 4
<?xml version="1.0" encoding="UTF-8"?>
I don’t find any TAB in Yii webpage source. Please tell me how to remove it.