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buildHTML's buildExpression is destructive, changing the tree object, this clones the object first before manipulating it.

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John Resig
2015-04-30 12:51:43 -04:00
parent 1f90b36518
commit 3875af8763
1 changed files with 4 additions and 0 deletions
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4
src/buildHTML.js
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@@ -1157,6 +1157,10 @@ var buildGroup = function(group, options, prev) {
* nodes. * nodes.
*/ */
var buildHTML = function(tree, settings) { var buildHTML = function(tree, settings) {
// buildExpression is destructive, so we need to make a clone
// of the incoming tree so that it isn't accidentally changed
tree = JSON.parse(JSON.stringify(tree));
var startStyle = Style.TEXT; var startStyle = Style.TEXT;
if (settings.displayMode) { if (settings.displayMode) {
startStyle = Style.DISPLAY; startStyle = Style.DISPLAY;