Merge pull request #8388 from Snuffleupagus/issue-8380

Cache JPEG images, just as we do for other image formats, in `evaluator.js` (issue 8380)

src/core/evaluator.js

@@ -474,9 +474,14 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
           NativeImageDecoder.isSupported(image, this.xref, resources)) {
         // These JPEGs don't need any more processing so we can just send it.
         operatorList.addOp(OPS.paintJpegXObject, args);
-        this.handler.send('obj',
-          [objId, this.pageIndex, 'JpegStream',
-           image.getIR(this.options.forceDataSchema)]);
+        this.handler.send('obj', [objId, this.pageIndex, 'JpegStream',
+                                  image.getIR(this.options.forceDataSchema)]);
+        if (cacheKey) {
+          imageCache[cacheKey] = {
+            fn: OPS.paintJpegXObject,
+            args,
+          };
+        }
         return;
       }
 

test/pdfs/issue8380.pdf.link

@@ -0,0 +1 @@
+https://web.archive.org/web/20170507102908/https://www.mbank.pl/download/firma/Dyspozycja-zmiany-typu-rachunku-biecego.pdf?noredir

test/test_manifest.json

@@ -1249,6 +1249,13 @@
       "rounds": 1,
       "type": "eq"
     },
+    {  "id": "issue8380",
+       "file": "pdfs/issue8380.pdf",
+       "md5": "2782af6a4d0540fcea3897560f842094",
+       "rounds": 1,
+       "link": true,
+       "type": "eq"
+    },
     {  "id": "type4psfunc",
       "file": "pdfs/type4psfunc.pdf",
       "md5": "7e6027a02ff78577f74dccdf84e37189",