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-rw-r--r--lib/Service/SignatureService.php5
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Service/SignatureService.php b/lib/Service/SignatureService.php
index 1c5bd6c8..ba6d2824 100644
--- a/lib/Service/SignatureService.php
+++ b/lib/Service/SignatureService.php
@@ -468,8 +468,9 @@ class SignatureService {
list($k, $v) = explode('=', $entry, 2);
preg_match('/"([^"]+)"/', $v, $varr);
- $v = trim($varr[0], '"');
-
+ if ($varr[0] !== null) {
+ $v = trim($varr[0], '"');
+ }
$sign[$k] = $v;
}