style: metadata spacing for web/api/x (mdn#20461)

Graywolf9 · Sep 9, 2022 · 073f70e · 073f70e
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diff --git a/files/en-us/web/api/xmldocument/async/index.md b/files/en-us/web/api/xmldocument/async/index.md
@@ -14,6 +14,7 @@ tags:
   - async
 browser-compat: api.XMLDocument.async
 ---
+
 {{APIRef("DOM")}}{{Non-standard_header}}{{Deprecated_header}}
 
 `document.async` can be set to indicate whether a {{DOMxRef("XMLDocument.load()")}} call should be an asynchronous or synchronous request. `true` is the default value, indicating that documents should be loaded asynchronously.

diff --git a/files/en-us/web/api/xmldocument/index.md b/files/en-us/web/api/xmldocument/index.md
@@ -10,6 +10,7 @@ tags:
   - XMLDocument
 browser-compat: api.XMLDocument
 ---
+
 {{APIRef("DOM")}}
 
 The **XMLDocument** interface represents an XML document. It inherits from the generic {{DOMxRef("Document")}} and does not add any specific methods or properties to it: nevertheless, several algorithms behave differently with the two types of documents.

diff --git a/files/en-us/web/api/xmldocument/load/index.md b/files/en-us/web/api/xmldocument/load/index.md
@@ -12,6 +12,7 @@ tags:
   - load
 browser-compat: api.XMLDocument.load
 ---
+
 {{APIRef("DOM")}}{{Non-standard_Header}}{{Deprecated_Header}}
 
 `document.load()` is a part of an old version of the W3C [DOM Level 3 Load & Save module](https://www.w3.org/TR/2003/WD-DOM-Level-3-LS-20030619/load-save.html#LS-DocumentLS). Can be used with {{DOMxRef("XMLDocument.async")}} to indicate whether the request is synchronous or asynchronous (the default). As of at least Gecko 1.9, this no longer supports cross-site loading of documents (Use {{DOMxRef("XMLHttpRequest")}} or {{DOMxRef("fetch()")}} instead).

diff --git a/files/en-us/web/api/xmlhttprequest/abort/index.md b/files/en-us/web/api/xmlhttprequest/abort/index.md
@@ -19,6 +19,7 @@ tags:
   - stop
 browser-compat: api.XMLHttpRequest.abort
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The **`XMLHttpRequest.abort()`** method aborts the request if

diff --git a/files/en-us/web/api/xmlhttprequest/abort_event/index.md b/files/en-us/web/api/xmlhttprequest/abort_event/index.md
@@ -11,6 +11,7 @@ tags:
   - abort
 browser-compat: api.XMLHttpRequest.abort_event
 ---
+
 {{APIRef}}
 
 The `abort` event is fired when a request has been aborted, for example because the program called {{domxref("XMLHttpRequest.abort()")}}.

diff --git a/files/en-us/web/api/xmlhttprequest/channel/index.md b/files/en-us/web/api/xmlhttprequest/channel/index.md
@@ -12,6 +12,7 @@ tags:
   - channel
   - nsIChannel
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 XMLHttpRequest.channel is an `nsIChannel` that used by the object when performing the request. This is `null` if the channel hasn't been created yet. In the case of a multi-part request, this is the initial channel, not the different parts in the multi-part request. **Requires elevated privileges to access.**
diff --git a/files/en-us/web/api/xmlhttprequest/error_event/index.md b/files/en-us/web/api/xmlhttprequest/error_event/index.md
@@ -11,6 +11,7 @@ tags:
   - XMLHttpRequest
 browser-compat: api.XMLHttpRequest.error_event
 ---
+
 {{APIRef}}
 
 The `error` event is fired when the request encountered an error.

diff --git a/files/en-us/web/api/xmlhttprequest/getallresponseheaders/index.md b/files/en-us/web/api/xmlhttprequest/getallresponseheaders/index.md
@@ -16,6 +16,7 @@ tags:
   - getAllResponseHeaders
 browser-compat: api.XMLHttpRequest.getAllResponseHeaders
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The {{domxref("XMLHttpRequest")}} method

diff --git a/files/en-us/web/api/xmlhttprequest/getresponseheader/index.md b/files/en-us/web/api/xmlhttprequest/getresponseheader/index.md
@@ -17,6 +17,7 @@ tags:
   - getResponseHeader
 browser-compat: api.XMLHttpRequest.getResponseHeader
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The {{DOMxRef("XMLHttpRequest")}} method

diff --git a/files/en-us/web/api/xmlhttprequest/html_in_xmlhttprequest/index.md b/files/en-us/web/api/xmlhttprequest/html_in_xmlhttprequest/index.md
@@ -13,6 +13,7 @@ tags:
   - XMLHttpRequest
 browser-compat: api.XMLHttpRequest
 ---
+
 {{APIRef("XMLHttpRequest")}}
 
 The W3C {{domxref("XMLHttpRequest")}} specification adds [HTML](/en-US/docs/Web/HTML) parsing support to {{domxref("XMLHttpRequest")}}, which originally supported only {{Glossary("XML")}} parsing. This feature allows Web apps to obtain an HTML resource as a parsed {{Glossary("DOM")}} using `XMLHttpRequest`.

diff --git a/files/en-us/web/api/xmlhttprequest/index.md b/files/en-us/web/api/xmlhttprequest/index.md
@@ -14,6 +14,7 @@ tags:
   - XMLHttpRequest
 browser-compat: api.XMLHttpRequest
 ---
+
 {{DefaultAPISidebar("XMLHttpRequest")}}
 
 `XMLHttpRequest` (XHR) objects are used to interact with servers. You can retrieve data from a URL without having to do a full page refresh. This enables a Web page to update just part of a page without disrupting what the user is doing.

diff --git a/files/en-us/web/api/xmlhttprequest/load_event/index.md b/files/en-us/web/api/xmlhttprequest/load_event/index.md
@@ -11,6 +11,7 @@ tags:
   - load
 browser-compat: api.XMLHttpRequest.load_event
 ---
+
 {{APIRef}}
 
 The `load` event is fired when an {{domxref("XMLHttpRequest")}} transaction completes successfully.

diff --git a/files/en-us/web/api/xmlhttprequest/loadend_event/index.md b/files/en-us/web/api/xmlhttprequest/loadend_event/index.md
@@ -14,6 +14,7 @@ tags:
   - loadend
 browser-compat: api.XMLHttpRequest.loadend_event
 ---
+
 {{APIRef}}
 
 The **`loadend`** event is fired when a request has completed, whether successfully (after {{domxref("XMLHttpRequest/load_event", "load")}}) or unsuccessfully (after {{domxref("XMLHttpRequest/abort_event", "abort")}} or {{domxref("XMLHttpRequest/error_event", "error")}}).

diff --git a/files/en-us/web/api/xmlhttprequest/loadstart_event/index.md b/files/en-us/web/api/xmlhttprequest/loadstart_event/index.md
@@ -14,6 +14,7 @@ tags:
   - loadstart
 browser-compat: api.XMLHttpRequest.loadstart_event
 ---
+
 {{APIRef}}
 
 The **`loadstart`** event is fired when a request has started to load data.

diff --git a/files/en-us/web/api/xmlhttprequest/mozanon/index.md b/files/en-us/web/api/xmlhttprequest/mozanon/index.md
@@ -13,6 +13,7 @@ tags:
   - XMLHttpRequest
   - mozAnon
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 **`XMLHttpRequest.mozAnon`** is a boolean. If true, the request will be sent without cookies or authentication headers.
diff --git a/files/en-us/web/api/xmlhttprequest/mozbackgroundrequest/index.md b/files/en-us/web/api/xmlhttprequest/mozbackgroundrequest/index.md
@@ -13,6 +13,7 @@ tags:
   - XMLHttpRequest
   - mozBackgroundRequest
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 > **Note:** This method is not available from Web content. It requires elevated privileges to access.

diff --git a/files/en-us/web/api/xmlhttprequest/mozsystem/index.md b/files/en-us/web/api/xmlhttprequest/mozsystem/index.md
@@ -13,6 +13,7 @@ tags:
   - mozSystem
   - origin
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 **`mozSystem`** is a boolean. If true, the same origin policy is not enforced on the request.
diff --git a/files/en-us/web/api/xmlhttprequest/mscaching/index.md b/files/en-us/web/api/xmlhttprequest/mscaching/index.md
@@ -7,6 +7,7 @@ tags:
   - Non-standard
   - Property
 ---
+
 {{APIRef("XMLHttpRequest")}}
 
 {{Non-standard_header()}}

diff --git a/files/en-us/web/api/xmlhttprequest/mscachingenabled/index.md b/files/en-us/web/api/xmlhttprequest/mscachingenabled/index.md
@@ -7,6 +7,7 @@ tags:
   - Method
   - Non-standard
 ---
+
 {{APIRef("HTML DOM")}}
 
 {{Non-standard_header()}}

diff --git a/files/en-us/web/api/xmlhttprequest/open/index.md b/files/en-us/web/api/xmlhttprequest/open/index.md
@@ -13,6 +13,7 @@ tags:
   - open
 browser-compat: api.XMLHttpRequest.open
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The {{domxref("XMLHttpRequest")}} method **`open()`**

diff --git a/files/en-us/web/api/xmlhttprequest/overridemimetype/index.md b/files/en-us/web/api/xmlhttprequest/overridemimetype/index.md
@@ -14,6 +14,7 @@ tags:
   - overrideMimeType
 browser-compat: api.XMLHttpRequest.overrideMimeType
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The {{domxref("XMLHttpRequest")}} method

diff --git a/files/en-us/web/api/xmlhttprequest/progress_event/index.md b/files/en-us/web/api/xmlhttprequest/progress_event/index.md
@@ -12,6 +12,7 @@ tags:
   - progress
 browser-compat: api.XMLHttpRequest.progress_event
 ---
+
 {{APIRef}}
 
 The **`progress`** event is fired periodically when a request receives more data.

diff --git a/files/en-us/web/api/xmlhttprequest/readystate/index.md b/files/en-us/web/api/xmlhttprequest/readystate/index.md
@@ -9,6 +9,7 @@ tags:
   - XMLHttpRequest
 browser-compat: api.XMLHttpRequest.readyState
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The **XMLHttpRequest.readyState** property returns the state an XMLHttpRequest client is in. An XHR client exists in one of the following states:

diff --git a/files/en-us/web/api/xmlhttprequest/readystatechange_event/index.md b/files/en-us/web/api/xmlhttprequest/readystatechange_event/index.md
@@ -10,6 +10,7 @@ tags:
   - XMLHttpRequest
 browser-compat: api.XMLHttpRequest.readystatechange_event
 ---
+
 {{APIRef}}
 
 The `readystatechange` event is fired whenever the {{domxref("XMLHttpRequest.readyState", "readyState")}} property of the {{domxref("XMLHttpRequest")}} changes.

diff --git a/files/en-us/web/api/xmlhttprequest/response/index.md b/files/en-us/web/api/xmlhttprequest/response/index.md
@@ -17,6 +17,7 @@ tags:
   - XMLHttpRequest
 browser-compat: api.XMLHttpRequest.response
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The {{domxref("XMLHttpRequest")}}

diff --git a/files/en-us/web/api/xmlhttprequest/responsetext/index.md b/files/en-us/web/api/xmlhttprequest/responsetext/index.md
@@ -13,6 +13,7 @@ tags:
   - responseText
 browser-compat: api.XMLHttpRequest.responseText
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The read-only {{domxref("XMLHttpRequest")}} property

diff --git a/files/en-us/web/api/xmlhttprequest/responsetype/index.md b/files/en-us/web/api/xmlhttprequest/responsetype/index.md
@@ -16,6 +16,7 @@ tags:
   - responseType
 browser-compat: api.XMLHttpRequest.responseType
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The {{domxref("XMLHttpRequest")}} property

diff --git a/files/en-us/web/api/xmlhttprequest/responseurl/index.md b/files/en-us/web/api/xmlhttprequest/responseurl/index.md
@@ -12,6 +12,7 @@ tags:
   - responseURL
 browser-compat: api.XMLHttpRequest.responseURL
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The read-only **`XMLHttpRequest.responseURL`** property returns the serialized URL of the response or the empty string if the URL is `null`. If the URL is returned, any URL fragment present in the URL will be stripped away. The value of `responseURL` will be the final URL obtained after any redirects.

diff --git a/files/en-us/web/api/xmlhttprequest/responsexml/index.md b/files/en-us/web/api/xmlhttprequest/responsexml/index.md
@@ -19,6 +19,7 @@ tags:
   - upload
 browser-compat: api.XMLHttpRequest.responseXML
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The **`XMLHttpRequest.responseXML`** read-only property returns

diff --git a/files/en-us/web/api/xmlhttprequest/send/index.md b/files/en-us/web/api/xmlhttprequest/send/index.md
@@ -16,6 +16,7 @@ tags:
   - send
 browser-compat: api.XMLHttpRequest.send
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The {{domxref("XMLHttpRequest")}} method

diff --git a/files/en-us/web/api/xmlhttprequest/setrequestheader/index.md b/files/en-us/web/api/xmlhttprequest/setrequestheader/index.md
@@ -18,6 +18,7 @@ tags:
   - setRequestHeader
 browser-compat: api.XMLHttpRequest.setRequestHeader
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The {{domxref("XMLHttpRequest")}} method

diff --git a/files/en-us/web/api/xmlhttprequest/status/index.md b/files/en-us/web/api/xmlhttprequest/status/index.md
@@ -13,6 +13,7 @@ tags:
   - status
 browser-compat: api.XMLHttpRequest.status
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The read-only **`XMLHttpRequest.status`** property returns the numerical HTTP [status code](/en-US/docs/Web/HTTP/Status) of the `XMLHttpRequest`'s response.

diff --git a/files/en-us/web/api/xmlhttprequest/statustext/index.md b/files/en-us/web/api/xmlhttprequest/statustext/index.md
@@ -12,6 +12,7 @@ tags:
   - XMLHttpRequest Status
 browser-compat: api.XMLHttpRequest.statusText
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The read-only **`XMLHttpRequest.statusText`** property returns a string containing the response's status message as returned by the HTTP server. Unlike [`XMLHTTPRequest.status`](/en-US/docs/Web/API/XMLHttpRequest/status) which indicates a numerical status code, this property contains the _text_ of the response status, such as "OK" or "Not Found". If the request's [`readyState`](/en-US/docs/Web/API/XMLHttpRequest/readyState) is in `UNSENT` or `OPENED` state, the value of `statusText` will be an empty string.

diff --git a/files/en-us/web/api/xmlhttprequest/synchronous_and_asynchronous_requests/index.md b/files/en-us/web/api/xmlhttprequest/synchronous_and_asynchronous_requests/index.md
@@ -12,6 +12,7 @@ tags:
   - XMLHttpRequest
   - asynchronous
 ---
+
 {{domxref('XMLHttpRequest')}} supports both synchronous and asynchronous communications. In general, however, asynchronous requests should be preferred to synchronous requests for performance reasons.
 
 Synchronous requests block the execution of code which causes "freezing" on the screen and an unresponsive user experience.

diff --git a/files/en-us/web/api/xmlhttprequest/timeout/index.md b/files/en-us/web/api/xmlhttprequest/timeout/index.md
@@ -13,6 +13,7 @@ tags:
   - timeout
 browser-compat: api.XMLHttpRequest.timeout
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The **`XMLHttpRequest.timeout`** property is an `unsigned long` representing the number of milliseconds a request can take before automatically being terminated. The default value is 0, which means there is no timeout. Timeout shouldn't be used for synchronous XMLHttpRequests requests used in a {{Glossary('document environment')}} or it will throw an `InvalidAccessError` exception. When a timeout happens, a [timeout](/en-US/docs/Web/API/XMLHttpRequest/timeout_event) event is fired.

diff --git a/files/en-us/web/api/xmlhttprequest/timeout_event/index.md b/files/en-us/web/api/xmlhttprequest/timeout_event/index.md
@@ -12,6 +12,7 @@ tags:
   - timeout
 browser-compat: api.XMLHttpRequest.timeout_event
 ---
+
 {{APIRef}}
 
 The **`timeout`** event is fired when progression is terminated due to preset time expiring.

diff --git a/files/en-us/web/api/xmlhttprequest/upload/index.md b/files/en-us/web/api/xmlhttprequest/upload/index.md
@@ -19,6 +19,7 @@ tags:
   - upload
 browser-compat: api.XMLHttpRequest.upload
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The {{domxref("XMLHttpRequest")}} `upload` property returns an {{domxref("XMLHttpRequestUpload")}} object that can be observed to monitor an upload's progress.

diff --git a/files/en-us/web/api/xmlhttprequest/using_xmlhttprequest/index.md b/files/en-us/web/api/xmlhttprequest/using_xmlhttprequest/index.md
@@ -15,6 +15,7 @@ tags:
   - XMLHttpRequest
 browser-compat: api.XMLHttpRequest
 ---
+
 {{APIRef("XMLHttpRequest")}}
 
 In this guide, we'll take a look at how to use

diff --git a/files/en-us/web/api/xmlhttprequest/withcredentials/index.md b/files/en-us/web/api/xmlhttprequest/withcredentials/index.md
@@ -14,6 +14,7 @@ tags:
   - withCredentials
 browser-compat: api.XMLHttpRequest.withCredentials
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The **`XMLHttpRequest.withCredentials`** property is a boolean value that indicates whether or not cross-site `Access-Control` requests should be made using credentials such as cookies, authorization headers or TLS client certificates. Setting `withCredentials` has no effect on same-site requests.

diff --git a/files/en-us/web/api/xmlhttprequest/xmlhttprequest/index.md b/files/en-us/web/api/xmlhttprequest/xmlhttprequest/index.md
@@ -15,6 +15,7 @@ tags:
   - XMLHttpRequest
 browser-compat: api.XMLHttpRequest.XMLHttpRequest
 ---
+
 {{APIRef('XMLHttpRequest')}}
 
 The **`XMLHttpRequest()`** constructor

diff --git a/files/en-us/web/api/xmlhttprequesteventtarget/index.md b/files/en-us/web/api/xmlhttprequesteventtarget/index.md
@@ -11,6 +11,7 @@ tags:
   - XMLHttpRequest
 browser-compat: api.XMLHttpRequestEventTarget
 ---
+
 {{APIRef("XMLHttpRequest")}}
 
 `XMLHttpRequestEventTarget` is the interface that describes the event handlers shared on {{domxref("XMLHttpRequest")}} and {{domxref("XMLHttpRequestUpload")}}.

diff --git a/files/en-us/web/api/xmlserializer/index.md b/files/en-us/web/api/xmlserializer/index.md
@@ -15,6 +15,7 @@ tags:
   - conversion
 browser-compat: api.XMLSerializer
 ---
+
 {{APIRef("XMLSerializer")}}
 
 The `XMLSerializer` interface provides the {{domxref("XMLSerializer.serializeToString", "serializeToString()")}} method to construct an XML string representing a {{Glossary("DOM")}} tree.

diff --git a/files/en-us/web/api/xmlserializer/serializetostring/index.md b/files/en-us/web/api/xmlserializer/serializetostring/index.md
@@ -17,6 +17,7 @@ tags:
   - serializeToString
 browser-compat: api.XMLSerializer.serializeToString
 ---
+
 {{APIRef("DOM Parsing")}}
 
 The {{domxref("XMLSerializer")}} method

diff --git a/files/en-us/web/api/xpathevaluator/createexpression/index.md b/files/en-us/web/api/xpathevaluator/createexpression/index.md
@@ -12,6 +12,7 @@ tags:
   - XPathEvaluator
 browser-compat: api.XPathEvaluator.createExpression
 ---
+
 {{APIRef("DOM XPath")}}
 
 This method compiles an {{domxref("XPathExpression")}} which can then be used for

diff --git a/files/en-us/web/api/xpathevaluator/creatensresolver/index.md b/files/en-us/web/api/xpathevaluator/creatensresolver/index.md
@@ -13,6 +13,7 @@ tags:
   - XPathEvaluator
 browser-compat: api.XPathEvaluator.createNSResolver
 ---
+
 {{APIRef("DOM XPath")}}
 
 This method adapts any DOM node to resolve namespaces so that an XPath expression can

diff --git a/files/en-us/web/api/xpathevaluator/evaluate/index.md b/files/en-us/web/api/xpathevaluator/evaluate/index.md
@@ -12,6 +12,7 @@ tags:
   - XPathEvaluator
 browser-compat: api.XPathEvaluator.evaluate
 ---
+
 {{APIRef("DOM XPath")}}
 
 The `evaluate()` method of the {{domxref("XPathEvaluator")}} interface

diff --git a/files/en-us/web/api/xpathevaluator/index.md b/files/en-us/web/api/xpathevaluator/index.md
@@ -14,6 +14,7 @@ tags:
   - XPathEvaluator
 browser-compat: api.XPathEvaluator
 ---
+
 {{APIRef("DOM XPath")}}
 
 The `XPathEvaluator` interface allows to compile and evaluate {{Glossary("XPath")}} expressions.

diff --git a/files/en-us/web/api/xpathexception/code/index.md b/files/en-us/web/api/xpathexception/code/index.md
@@ -12,6 +12,7 @@ tags:
   - XPathException
 browser-compat: api.XPathException.code
 ---
+
 {{APIRef("DOM XPath")}}{{Deprecated_Header}}
 
 The **`code`** read-only property of the

diff --git a/files/en-us/web/api/xpathexception/index.md b/files/en-us/web/api/xpathexception/index.md
@@ -11,6 +11,7 @@ tags:
   - XPath
 browser-compat: api.XPathException
 ---
+
 {{APIRef("DOM XPath")}}{{Deprecated_Header}}
 
 In the [DOM XPath API](/en-US/docs/Web/XPath) the **`XPathException`** interface represents exception conditions that can be encountered while performing XPath operations.

diff --git a/files/en-us/web/api/xpathexpression/evaluate/index.md b/files/en-us/web/api/xpathexpression/evaluate/index.md
@@ -11,6 +11,7 @@ tags:
   - XPathExpression
 browser-compat: api.XPathExpression.evaluate
 ---
+
 {{APIRef("DOM XPath")}}
 
 The **`evaluate()`** method of the