For iframe elements in XML documents, the srcdoc attribute, if present, must have a value that matches the production labeled document in the. Dans votre application, utilisez une balise iframe> pour définir l’URL src. All data-param-* attributes will be added as query parameter to the YouTube iframe src. This may be used to pass custom values through to YouTube plugins, .

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Let maxweek be the week number of the last day of year year. If the attacker then convinced a victim user to visit this page, a script of the attacker’s choosing would run on the page. Consecutive weeks are numbered sequentially.

Paramètres du lecteur

Since DOM trees are used as the way to represent HTML documents when they are processed and presented by implementations especially interactive implementations like Iframee browsersthis specification is mostly phrased in terms of DOM trees, instead of the markup described above.

As far as conformance goes, what matters in a particular community is what that community agrees is applicable. The new modestbranding parameter lets you use a YouTube player that does kframe show a YouTube logo.

If position is past the end of inputreturn an error. This specification sometimes uses the term name to refer to the event’s type ; as in, “an event named click ” or “if the event name is keypress “. If the URL identified by the cite attribute is being shown to the user, or if any data derived from that URL is affecting the display, baliee the URL should be reparsed relative to the element’s node document and the UI updated appropriately.

A user agent must not mutate the DOM in such situations. In both cases, the next step will trigger fallback. A media element is said to be potentially playing when its paused attribute is false, the element has not ended playbackplayback has not stopped due to errorsand the element is not a blocked baise element.


If that is successful, the user agent should run these steps:.

Its purpose is to allow images from third-party bailse that allow cross-origin access to be used with canvas. Inthe publication of XForms, a technology which was positioned as the next generation of Web forms, sparked a renewed interest in evolving HTML itself, rather than finding replacements for it.

HTML iframe tag

Authors might want to show the same image content but using different image formats, depending on which image formats the user agent supports. Multiply divisor by ten. In this example, the user agent will choose the first source that has a type attribute with a supported MIME type. These rules return a list of zero or more pairs consisting of a number and a unit, the unit being one of percentagerelativeand absolute. For example, if two clips have been concatenated into one video file, but the video format exposes the original times for the two clips, the video data might expose a timeline that goes, say, When a media element that is potentially playing stops playing because it has paused for user interactionthe user agent must iframme a task to fire a simple event named timeupdate at iframs element.

Return value as a length.

If the media resource specifies an explicit start time and datethen that time and date should be considered the zero point in the media timeline ; the ballise offset will be the time and date, exposed using the getStartDate method. For example, while strongly discouraged from doing so, an implementation could add a new IDL attribute ” typeTime ” to a control that returned the time it took the user to select the current value of a control say.

In particular, hardware configuration software, image manipulation tools, and applications that users would be expected to use with high-end workstations on a daily basis are out of scope. User agents are encouraged to expose parse error s somehow.

The iframe element supports dimension attributes for cases where the embedded content has specific dimensions e.

The source element allows authors to specify multiple alternative source sets for img elements or multiple alternative media resources for media elements. When third-party software is run with the same privileges as the user agent itself, vulnerabilities in the third-party software become as dangerous as those in the user agent.


Only the last instance takes effect, to avoid multiple requests when, for example, the srcsrcsetand crossorigin attributes are all set in succession. The defining instance of a term is marked up like this. The sizes attribute sets up the layout breakpoints at 30em and 50emand declares the image sizes between these breakpoints to be vw50vwor calc 33vw – px. The possible values are as follows; the ready state of a media element at any particular time is the greatest value describing the state of the element:.

If either the name or value of a parameter defined by a param element that is the child of an object element that represents an instantiated plugin changes, and if that plugin is communicating with the user agent using an API that features the ability to update the plugin when the name or value of a parameter so changes, then the user agent must appropriately exercise that ability to notify the plugin of the change.

Notice that even in this example, as much useful information as possible is still included in the figcaption element. This non-text content[WCAG20] can convey a significant amount of information visually or provide a specific sensory experience[WCAG20] to a sighted person. For example, setting the disabled attribute to the value ” false ” is disallowed, because despite the appearance of meaning that the element is enabled, it in fact means that the element is disabled what matters for implementations is the presence of the attribute, not its value.

Otherwise, let the pending request be image request. An appropriate text alternative for a picture is a brief description, or name [WCAG20].

If multiple audio tracks are enabled simultaneously, they are mixed.