Executing [removed] elements inserted with [removed]

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囚心锁ツ
囚心锁ツ 2020-11-22 00:12

I\'ve got a script that inserts some content into an element using innerHTML.

The content could for example be:



        
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  • 2020-11-22 01:13

    scriptNode.innerHTML = code didn't work for IE. The only thing to do is replace with scriptNode.text = code and it work fine

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  • 2020-11-22 01:13

    I needed something similar, but needed the script to remain or be re-created in the same spot as the original script, since my script targets the location of the script tag in the DOM to create/target elements. I also made the script recursive to make sure it also works if it is more than one level down.

    NOTE: I use const here, if you have a older browser, just use var.

        window.exec_body_scripts = function(body_el) {
            // ref: https://stackoverflow.com/questions/2592092/executing-script-elements-inserted-with-innerhtml based on Larry K's answer
            // Finds and executes scripts in a newly added element's body.
            // Needed since innerHTML does not run scripts.
            //
            // Argument body_el is an element in the dom.
            const
                type__Js = 'text/javascript',
                tagName__Script = 'script',
                tagName__Script__Upper = tagName__Script.toUpperCase();
            var scripts = [], script, i;
            function evalScript(elem) {
                var parent = elem.parentNode,
                    data = (elem.text || elem.textContent || elem.innerHTML || ""),
                    script = document.createElement(tagName__Script);
    
                script.type = type__Js;
                try {
                    // doesn't work on ie...
                    script.appendChild(document.createTextNode(data));
                } catch (e) {
                    // IE has funky script nodes
                    script.text = data;
                }
                // Make sure to re-insert the script at the same position
                // to make sure scripts that target their position
                // in the DOM function as expected.
                var parent = elem.parentNode;
                parent.insertBefore(script, elem);
                parent.removeChild(elem);
            };
            // Get all scripts (recursive)
            if (typeof (document.querySelectorAll) !== typeof (void 0)) {
                document.querySelectorAll('script').forEach((scr) => { if (!scr.type || scr.type.toLowerCase() === type__Js) scripts.push(scr); });
            }
            else {
                var children_nodes = body_el.childNodes, child;
                for (i = 0; children_nodes[i]; i++) {
                    child = children_nodes[i];
                    if (
                        child.nodeName
                        &&
                        child.nodeName.toUpperCase() === tagName__Script__Upper
                        &&
                        (
                            !child.type
                            ||
                            child.type.toLowerCase() === type__Js
                        )
                    ) {
                        scripts.push(child);
                    }
                    // Recursive call
                    window.exec_body_scripts(child);
                }
            }
            for (i = 0; scripts[i]; i++) {
                evalScript(scripts[i]);
            }
        };
    
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