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Update Config.php (#211)

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Fixed Undefined index: class
This commit is contained in:
DiLong Fa 2019-07-15 00:11:34 +07:00 committed by Edward Z. Yang
parent 5a90c92d83
commit 524cd08a59
1 changed files with 1 additions and 1 deletions
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2
library/HTMLPurifier/Config.php
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@ -890,7 +890,7 @@ class HTMLPurifier_Config
// zip(tail(trace), trace) -- but PHP is not Haskell har har
for ($i = 0, $c = count($trace); $i < $c - 1; $i++) {
// XXX this is not correct on some versions of HTML Purifier
if ($trace[$i + 1]['class'] === 'HTMLPurifier_Config') {
if (isset($trace[$i + 1]['class']) && $trace[$i + 1]['class'] === 'HTMLPurifier_Config') {
continue;
}
$frame = $trace[$i];