Как скрыть каре в IE? (JavaScript)

Наконец-то нашли решение

Шаблон:

<input type="file" [multiple]="multiple" #fileInput class="browse-btn" (change)="readFile()" accept=".xlsx">
<button type="button" class="btn btn-info btn-lg" (click)="upload()" >Upload</button>

Компонент:

public upload() {
    const inputEl: HTMLInputElement = this.inputEl.nativeElement;
    const fileCount: number = inputEl.files.length;
    const formData = new FormData();
    const headers = new Headers();
    headers.set('Accept', 'application/json');
    headers.delete('Content-Type'); // mandate for accepting binary content
    if (fileCount > 0) {
        for (let i = 0; i < fileCount; i++) {
            formData.append('file', inputEl.files.item(i));
        }
        try {
            this.loaderForFileUpload = true;
            this.http
                .post('http://urlForFileUpload', formData, { headers: headers })
                .subscribe(response => {
                    if (response.status === 200) {
                        this._toastr.success('File uploaded successfully', 'Success!');
                    }
                }, error => {
                    this._toastr.error('File contents mismatch', error.statusText);
                });
        } catch (e) {
            console.log('Error occured while posting uploaded file. See below message for details : \n');
            console.log(e);
        }
    }
}