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[Firefox] Handle errors if loading failed before the "supportsRangedLoading" message was sent (bug 1732141)

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This is a follow-up to PR 10675, since there I completely overlooked that we also need to handle the case where a PDF document has *failed* to load when the "supportsRangedLoading" message is sent to the viewer.
This commit is contained in:
Jonas Jenwald 2021-11-01 17:50:49 +01:00
parent 6a15973a1b
commit f4e88b0a57
1 changed files with 5 additions and 3 deletions
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8
web/firefoxcom.js
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@ -332,6 +332,10 @@ class FirefoxExternalServices extends DefaultExternalServices {
}
switch (args.pdfjsLoadAction) {
case "supportsRangedLoading":
if (args.done && !args.data) {
callbacks.onError();
break;
}
pdfDataRangeTransport = new FirefoxComDataRangeTransport(
args.length,
args.data,
@ -359,9 +363,7 @@ class FirefoxExternalServices extends DefaultExternalServices {
pdfDataRangeTransport.onDataProgress(args.loaded, args.total);
break;
case "progressiveDone":
if (pdfDataRangeTransport) {
pdfDataRangeTransport.onDataProgressiveDone();
}
pdfDataRangeTransport?.onDataProgressiveDone();
break;
case "progress":
callbacks.onProgress(args.loaded, args.total);