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Fix crash with illegal tag names for element widget 

Fixes #7122
This commit is contained in:
jeremy@jermolene.com 2022-12-20 17:31:51 +00:00
parent b37a356b5e
commit a5afed9384
1 changed files with 5 additions and 1 deletions
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6
core/modules/widgets/element.js
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@ -30,10 +30,14 @@ ElementWidget.prototype.render = function(parent,nextSibling) {
this.parentDomNode = parent;
this.computeAttributes();
// Neuter blacklisted elements
this.tag = this.parseTreeNode.tag || "span";
this.tag = this.parseTreeNode.tag;
if($tw.config.htmlUnsafeElements.indexOf(this.tag) !== -1) {
this.tag = "safe-" + this.tag;
}
// Restrict tag name to digits, letts and dashes
this.tag = this.tag.replace(/[^0-9a-zA-Z\-]/mg,"");
// Default to a span
this.tag = this.tag || "span";
// Adjust headings by the current base level
var headingLevel = ["h1","h2","h3","h4","h5","h6"].indexOf(this.tag);
if(headingLevel !== -1) {