function cleanHTML returns incorrect html about cl-editor HOT 4 CLOSED

		.replace(/class="[^"]*"/gi, '')
		.replace(/class='[^']*'/gi, '')

export const cleanHtml = (input: string) => {
    // remove line brakers and find relevant html
    const html = input.replace(/\r?\n|\r/g, ' ').match(/<!--StartFragment-->(.*?)<!--EndFragment-->/);
    let output = html && html[1] || '';
    console.log('cleanHtml origin html', html)
    output = output
                // 1. removeMso classes
                .replace(/(class=(")?Mso[a-zA-Z]+(")?)/g, ' ')
                // 2. strip Word generated HTML comments
                .replace(/<!--(.*?)-->/g, '')
                // 3. remove tags leave content if any
                .replace(new RegExp('<(/)*(meta|link|span|\\?xml:|st1:|o:|font|w:sdt)(.*?)>','gi'), '')
                .replace(/<!\[if !supportLists\]>(.*?)<!\[endif\]>/gi, '')
                .replace(/style="[^"]*"/gi, '')
                .replace(/style='[^']*'/gi, '')
                .replace(/&nbsp;/gi, ' ')
                .replace(/>(\s+)</g, '><');
                        
    // 4. Remove everything in between and including tags '<style(.)style(.)>'
    output = removeBadTags(output);
    return output;
}

export const cleanHtml2 = (input: string) => {
	let output = input
		.replace(/\r?\n|\r/g, ' ')
		.replace(/<!--(.*?)-->/g, '')
		.replace(new RegExp('<(/)*(meta|link|span|\\?xml:|st1:|o:|font|w:sdt)(.*?)>', 'gi'), '')
		.replace(/<!\[if !supportLists\]>(.*?)<!\[endif\]>/gi, '')
		.replace(/style="[^"]*"/gi, '')
		.replace(/style='[^']*'/gi, '')
		.replace(/&nbsp;/gi, ' ')
		.replace(/>(\s+)</g, '><')
		.replace(/class="[^"]*"/gi, '')
		.replace(/class='[^']*'/gi, '')
		.replace(/<[^/].*?>/g, i => i.split(/[ >]/g)[0] + '>')
		.trim()
	// 4. Remove everything in between and including tags '<style(.)style(.)>'
    output = removeBadTags(output);
    return output;
};

export const removeBadTags = (html: string) => {
    ['style', 'script', 'applet', 'embed', 'noframes', 'noscript'].forEach((badTag: string) => {
        html = html.replace(new RegExp(`<${badTag}.*?${badTag}(.*?)>`, 'gi'), '')
    });

    return html;
}

let input = '<h1><div class="Mso-xyz" style="font-size:2em">Hello World</div></h1>';
console.log('input', input);
console.log('cleanHtml origin', cleanHtml(input));
console.log('cleanHtml modified', cleanHtml2(input));