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Catch XHR errors #222

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Merged
merged 2 commits into from
Aug 20, 2018
Merged

Catch XHR errors #222

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b024dfe
Catch XHR errors
dirkluijk Aug 17, 2018
f2e298f
Refactor try/catch
LinusU Aug 20, 2018
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29 changes: 14 additions & 15 deletions source-map-support.js
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Original file line number Diff line number Diff line change
Expand Up @@ -78,23 +78,22 @@ retrieveFileHandlers.push(function(path) {
return fileContentsCache[path];
}

var contents = null;
if (!fs) {
// Use SJAX if we are in the browser
var xhr = new XMLHttpRequest();
xhr.open('GET', path, false);
xhr.send(null);
var contents = null
if (xhr.readyState === 4 && xhr.status === 200) {
contents = xhr.responseText
}
} else if (fs.existsSync(path)) {
// Otherwise, use the filesystem
try {
var contents = '';
try {
if (!fs) {
// Use SJAX if we are in the browser
var xhr = new XMLHttpRequest();
xhr.open('GET', path, /** async */ false);
xhr.send(null);
if (xhr.readyState === 4 && xhr.status === 200) {
contents = xhr.responseText;
}
} else if (fs.existsSync(path)) {
// Otherwise, use the filesystem
contents = fs.readFileSync(path, 'utf8');
} catch (er) {
contents = '';
}
} catch (er) {
/* ignore any errors */
}

return fileContentsCache[path] = contents;
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