Lista de códigos permitidos en las plantillas de HTML

Por motivos de seguridad y compatibilidad, su plantilla de informes HTML se desinfecta automáticamente cada vez que se guarda. Si la plantilla contiene etiquetas no permitidas, se le notificará acerca de ello y podrá elegir entre permitir la eliminación automática o eliminarlas manualmente usted mismo.

Una plantilla HTML no puede guardarse si contiene algún contenido que no aparezca en esta página. Cuando haya contenido prohibido en la plantilla, primero debe sanear el contenido, ya sea automáticamente o eliminando manualmente el código no conforme, antes de guardarlo.

Etiquetas permitidas de manera predeterminada

a, abbr, acronym, address, area, article, aside, b, bdi, big, blockquote, body, br, button, caption, center, cite, code, col, colgroup, data, datalist, dd, del, details, dfn, dir, div, dl, dt, em, fieldset, figcaption, figure, font, footer, form, h1, h2, h3, h4, h5, h6, head, header, hr, html, i, img, input, ins, kbd, keygen, label, legend, li, main, map, mark, menu, menuitem, meter, nav, ol, optgroup, option, output, p, pre, progress, q, rp, rt, ruby, s, samp, section, select, small, span, strike, strong, style, sub, summary, sup, table, tbody, td, textarea, tfoot, th, thead, time, title, tr, tt, u, ul, var, wbr.

Atributos permitidos de manera predeterminada

abbr, accept-charset, accept, accesskey, action, align, alt, autocomplete, autosave, axis, bgcolor, border, cellpadding, cellspacing, challenge, char, charoff, charset, checked, cite, class, clear, color, cols, colspan, compact, contenteditable, coords, datetime, dir, disabled, draggable, dropzone, enctype, for, frame, headers, height, high, href, hreflang, hspace, ismap, keytype, label, lang, list, longdesc, low, max, maxlength, media, method, min, multiple, name, nohref, noshade, novalidate, nowrap, open, optimum, pattern, placeholder, prompt, pubdate, radiogroup, readonly, rel, required, rev, reversed, rows, rowspan, rules, scope, selected, shape, size, span, spellcheck, src, start, step, style, summary, tabindex, target, title, type, usemap, valign, value, vspace, width, wrap.

Propiedades CSS permitidas de manera predeterminada

align-content, align-items, align-self, all, animation, animation-delay, animation-direction, animation-duration, animation-fill-mode, animation-iteration-count, animation-name, animation-play-state, animation-timing-function, backface-visibility, background, background-attachment, background-blend-mode, background-clip, background-color, background-image, background-origin, background-position, background-position-x, background-position-y, background-repeat, background-repeat-x, background-repeat-y, background-size, border, border-bottom, border-bottom-color, border-bottom-left-radius, border-bottom-right-radius, border-bottom-style, border-bottom-width, border-collapse, border-color, border-image, border-image-outset, border-image-repeat, border-image-slice, border-image-source, border-image-width, border-left, border-left-color, border-left-style, border-left-width, border-radius, border-right, border-right-color, border-right-style, border-right-width, border-spacing, border-style, border-top, border-top-color, border-top-left-radius, border-top-right-radius, border-top-style, border-top-width, border-width, bottom, box-decoration-break, box-shadow, box-sizing, break-after, break-before, break-inside, caption-side, caret-color, clear, clip, color, column-count, column-fill, column-gap, column-rule, column-rule-color, column-rule-style, column-rule-width, column-span, column-width, columns, content, counter-increment, counter-reset, cursor, direction, display, empty-cells, filter, flex, flex-basis, flex-direction, flex-flow, flex-grow, flex-shrink, flex-wrap, float, font, font-family, font-feature-settings, font-kerning, font-language-override, font-size, font-size-adjust, font-stretch, font-style, font-synthesis, font-variant, font-variant-alternates, font-variant-caps, font-variant-east-asian, font-variant-ligatures, font-variant-numeric, font-variant-position, font-weight, gap, grid, grid-area, grid-auto-columns, grid-auto-flow, grid-auto-rows, grid-column, grid-column-end, grid-column-gap, grid-column-start, grid-gap, grid-row, grid-row-end, grid-row-gap, grid-row-start, grid-template, grid-template-areas, grid-template-columns, grid-template-rows, hanging-punctuation, height, hyphens, image-rendering, isolation, justify-content, left, letter-spacing, line-break, line-height, list-style, list-style-image, list-style-position, list-style-type, margin, margin-bottom, margin-left, margin-right, margin-top, mask, mask-clip, mask-composite, mask-image, mask-mode, mask-origin, mask-position, mask-repeat, mask-size, mask-type, max-height, max-width, min-height, min-width, mix-blend-mode, object-fit, object-position, opacity, order, orphans, outline, outline-color, outline-offset, outline-style, outline-width, overflow, overflow-wrap, overflow-x, overflow-y, padding, padding-bottom, padding-left, padding-right, padding-top, page-break-after, page-break-before, page-break-inside, perspective, perspective-origin, pointer-events, position, quotes, resize, right, row-gap, scroll-behavior, tab-size, table-layout, text-align, text-align-last, text-combine-upright, text-decoration, text-decoration-color, text-decoration-line, text-decoration-skip, text-decoration-style, text-indent, text-justify, text-orientation, text-overflow, text-shadow, text-transform, text-underline-position, top, transform, transform-origin, transform-style, transition, transition-delay, transition-duration, transition-property, transition-timing-function, unicode-bidi, user-select, vertical-align, visibility, white-space, widows, width, word-break, word-spacing, word-wrap, writing-mode, z-index.

Reglas CSS @ permitidas de manera predeterminada

namespace, style.

Esquemas de URI permitidos de manera predeterminada

data, http, https, mailto.

Atributos predeterminados que contienen esquemas URI

action, background, dynsrc, href, lowsrc, src.

HTML y comentarios CSS

Para mayor comodidad del desarrollador, se permiten comentarios HTML en las plantillas de HTML. Sin embargo, se eliminan en los informes generados en HTML.

Los comentarios CSS se eliminan tanto en las plantillas de HTML como en los informes generados de HTML.

Ejemplo de desinfección

El siguiente código de HTML requiere desinfección porque contiene un elemento de script. La etiqueta de script no está incluida en Etiquetas permitidas de manera predeterminada.

<html><head>
  <style>h2 { color: red }</style>
  <script>Window.alert('Hi!')</script>
  <title>Sanitization example</title>
  </head>
  <body>
    <h2>This is your chart</h2>
    
</body></html>

Cuando añada este código y trate de guardar su plantilla, se le pedirá que haga una de las siguientes indicaciones:

• Permita el saneamiento automático de su código haciendo clic en Guardar de todos modos.

• Vuelva al editor para arreglar el código usted mismo haciendo clic en Cerrar y continuar editando.

Con el saneado automático, el código resultante en la plantilla será:

<html><head>
  <style>h2 { color: #FF0000 }</style>
  
  <title>Sanitization example</title>
  </head>
  <body>
    <h2>This is your chart</h2>
    
</body></html>