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															@@ -166,6 +166,7 @@ export default { 
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															       const pptList = ['.ppt', '.pptx', '.dps', '.dpt', '.pot', '.pps'] 
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															       const pptList = ['.ppt', '.pptx', '.dps', '.dpt', '.pot', '.pps'] 
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															       const pdfList = ['.pdf'] 
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															       const pdfList = ['.pdf'] 
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															       const fileList = ['.zip', '.rar', '.gz', '.apk'] 
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															       const fileList = ['.zip', '.rar', '.gz', '.apk'] 
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															+      const zip = ['.zip'] 
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															       let whiteList = [] 
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															       let whiteList = [] 
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															       this.fileType.includes('image') && (whiteList = whiteList.concat(imageList)) 
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															       this.fileType.includes('image') && (whiteList = whiteList.concat(imageList)) 
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															       this.fileType.includes('video') && (whiteList = whiteList.concat(videoList)) 
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															       this.fileType.includes('video') && (whiteList = whiteList.concat(videoList)) 
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															@@ -174,6 +175,8 @@ export default { 
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															       this.fileType.includes('ppt') && (whiteList = whiteList.concat(pptList)) 
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															       this.fileType.includes('ppt') && (whiteList = whiteList.concat(pptList)) 
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															       this.fileType.includes('pdf') && (whiteList = whiteList.concat(pdfList)) 
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															       this.fileType.includes('pdf') && (whiteList = whiteList.concat(pdfList)) 
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															       this.fileType.includes('file') && (whiteList = whiteList.concat(fileList)) 
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															       this.fileType.includes('file') && (whiteList = whiteList.concat(fileList)) 
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															+      this.fileType.includes('zip') && (whiteList = whiteList.concat(zip)) 
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															       return whiteList.join(',') 
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															       return whiteList.join(',') 
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															     }, 
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															     }, 
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															     previewImages() { 
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															     previewImages() { 
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