From 82411490795c1a6a2b88e640a3ba1effea4dacff Mon Sep 17 00:00:00 2001
From: Dan Stillman <dstillman@zotero.org>
Date: Wed, 22 Nov 2017 04:22:08 -0500
Subject: [PATCH] Fix sync error if item with no content type somehow was
 indexed

https://forums.zotero.org/discussion/68954/mimetype-is-undefined-error

Not sure how this could happen.
---
 chrome/content/zotero/xpcom/fulltext.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/chrome/content/zotero/xpcom/fulltext.js b/chrome/content/zotero/xpcom/fulltext.js
index c062f0c111..b03df67e93 100644
--- a/chrome/content/zotero/xpcom/fulltext.js
+++ b/chrome/content/zotero/xpcom/fulltext.js
@@ -849,7 +849,7 @@ Zotero.Fulltext = Zotero.FullText = new function(){
 			let item = yield Zotero.Items.getAsync(itemID);
 			let libraryKey = item.libraryKey;
 			let contentType = item.attachmentContentType;
-			if (isCachedMIMEType(contentType) || Zotero.MIME.isTextType(contentType)) {
+			if (contentType && (isCachedMIMEType(contentType) || Zotero.MIME.isTextType(contentType))) {
 				try {
 					let cacheFile = this.getItemCacheFile(item).path;
 					if (yield OS.File.exists(cacheFile)) {
@@ -904,7 +904,7 @@ Zotero.Fulltext = Zotero.FullText = new function(){
 			}
 			else {
 				Zotero.debug("Skipping non-text file getting full-text content for item "
-					+ libraryKey, 2);
+					+ `${libraryKey} (contentType: ${contentType})`, 2);
 				
 				// Delete rows for items that weren't supposed to be indexed
 				yield Zotero.DB.executeTransaction(function* () {