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-rw-r--r--lib/htmloutputter.php8
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/htmloutputter.php b/lib/htmloutputter.php
index aa01f6b1d..c70f96537 100644
--- a/lib/htmloutputter.php
+++ b/lib/htmloutputter.php
@@ -109,11 +109,13 @@ class HTMLOutputter extends XMLOutputter
header('Content-Type: '.$type);
$this->extraHeaders();
- if( ! substr($type,0,strlen('text/html'))=='text/html' ){
- // Browsers don't like it when <?xml it output for non-xhtml documents
+ if (preg_match("/.*\/.*xml/", $type)) {
+ // Required for XML documents
$this->xw->startDocument('1.0', 'UTF-8');
}
- $this->xw->writeDTD('html');
+ $this->xw->writeDTD('html',
+ '-//W3C//DTD XHTML 1.0 Strict//EN',
+ 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd');
$language = $this->getLanguage();