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[stable8.1] Add custom CSP for Win 10 compatibility #18957

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Sep 24, 2015
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[stable8.1] Add custom CSP for Win 10 compatibility #18957

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11 changes: 11 additions & 0 deletions lib/private/eventsource.php
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,17 @@ protected function init() {
$this->fallback = isset($_GET['fallback']) and $_GET['fallback'] == 'true';
if ($this->fallback) {
$this->fallBackId = (int)$_GET['fallback_id'];
/**
* FIXME: The default content-security-policy of ownCloud forbids inline
* JavaScript for security reasons. IE starting on Windows 10 will
* however also obey the CSP which will break the event source fallback.
*
* As a workaround thus we set a custom policy which allows the execution
* of inline JavaScript.
*
* @link https://github.com/owncloud/core/issues/14286
*/
header("Content-Security-Policy: default-src 'none'; script-src 'unsafe-inline'");
header("Content-Type: text/html");
echo str_repeat('<span></span>' . PHP_EOL, 10); //dummy data to keep IE happy
} else {
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