Krinkle has submitted this change and it was merged.

Change subject: Work around preg_replace_callback() issue in CSSJanus
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Work around preg_replace_callback() issue in CSSJanus

As reported in bug 38294, CSSJanus returns an empty string for some
input. This seems to be caused by preg_replace_callback() returning
null which, according to the PHP docs, happens "in case of error". Of
course there's no way to figure out what the error was :S

Work around this by checking for a null return value

Change-Id: I5db952bc32f73b94ac13e449d9aa1f8693602dbd
---
M includes/libs/CSSJanus.php
1 file changed, 9 insertions(+), 2 deletions(-)

Approvals:
  Krinkle: Verified; Looks good to me, approved
  jenkins-bot: Verified


--
To view, visit https://gerrit.wikimedia.org/r/21775
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Gerrit-MessageType: merged
Gerrit-Change-Id: I5db952bc32f73b94ac13e449d9aa1f8693602dbd
Gerrit-PatchSet: 1
Gerrit-Project: mediawiki/core
Gerrit-Branch: master
Gerrit-Owner: Catrope <[email protected]>
Gerrit-Reviewer: Aaron Schulz <[email protected]>
Gerrit-Reviewer: Amire80 <[email protected]>
Gerrit-Reviewer: Catrope <[email protected]>
Gerrit-Reviewer: Krinkle <[email protected]>
Gerrit-Reviewer: jenkins-bot

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