HTML Service

This service allows Apps Script applications to return HTML, usually as a user interface. If you're new to using this class, we recommend you also see the guide to Html Service

Classes

Name	Brief description
`HtmlOutput`	An `HtmlOutput` object that can be served from a script.
`HtmlOutputMetaTag`	An object that represents a meta tag added to the page by calling `HtmlOutput.addMetaTag(name, content)`.
`HtmlService`	Service for returning HTML and other text content from a script.
`HtmlTemplate`	A template object for dynamically constructing HTML.
`SandboxMode`	An enum representing the sandbox modes that can be used for client-side `HtmlService` scripts.
`XFrameOptionsMode`	An enum representing the `X-Frame-Options` modes that can be used for client-side `HtmlService` scripts.

`HtmlOutput`

Methods

Method	Return type	Brief description
`addMetaTag(name, content)`	`HtmlOutput`	Adds a meta tag to the page.
`append(addedContent)`	`HtmlOutput`	Appends new content to the content of this `HtmlOutput`.
`appendUntrusted(addedContent)`	`HtmlOutput`	Appends new content to the content of this `HtmlOutput`, using contextual escaping.
`asTemplate()`	`HtmlTemplate`	Returns an `HtmlTemplate` backed by this `HtmlOutput`.
`clear()`	`HtmlOutput`	Clears the current content.
`getAs(contentType)`	`Blob`	Return the data inside this object as a blob converted to the specified content type.
`getBlob()`	`Blob`	Return the data inside this object as a blob.
`getContent()`	`String`	Gets the content of this `HtmlOutput`.
`getFaviconUrl()`	`String`	Gets the URL for a favicon link tag added to the page by calling `setFaviconUrl(iconUrl)`.
`getHeight()`	`Integer`	Gets the initial height of the custom dialog in Google Docs, Sheets, or Forms.
`getMetaTags()`	`HtmlOutputMetaTag[]`	Gets an array of objects that represent meta tags added to the page by calling `addMetaTag(name, content)`.
`getTitle()`	`String`	Gets the title of the output page.
`getWidth()`	`Integer`	Gets the initial width of the custom dialog in Google Docs, Sheets, or Forms.
`setContent(content)`	`HtmlOutput`	Sets the content of this `HtmlOutput`.
`setFaviconUrl(iconUrl)`	`HtmlOutput`	Adds a link tag for a favicon to the page.
`setHeight(height)`	`HtmlOutput`	Sets the initial height of the custom dialog in Google Docs, Sheets, or Forms.
`setSandboxMode(mode)`	`HtmlOutput`	This method now has no effect — previously it set the `sandbox mode` used for client-side scripts.
`setTitle(title)`	`HtmlOutput`	Sets the title of the output page.
`setWidth(width)`	`HtmlOutput`	Sets the initial width of a custom dialog in Google Docs, Sheets, or Forms.
`setXFrameOptionsMode(mode)`	`HtmlOutput`	Sets the state of the page's `X-Frame-Options` header, which controls clickjacking prevention.

`HtmlOutputMetaTag`

Methods

Method	Return type	Brief description
`getContent()`	`String`	Gets the content of this meta tag.
`getName()`	`String`	Gets the name of this `HtmlOutputMetaTag`.

`HtmlService`

Properties

Property	Type	Description
`SandboxMode`	`SandboxMode`	An enum representing the sandbox modes that can be used for client-side `HtmlService` scripts.
`XFrameOptionsMode`	`XFrameOptionsMode`	An enum representing the `X-Frame-Options` modes that can be used for client-side `HtmlService` scripts.

Methods

Method	Return type	Brief description
`createHtmlOutput()`	`HtmlOutput`	Creates a new `HtmlOutput` object that can be returned from the script.
`createHtmlOutput(blob)`	`HtmlOutput`	Creates a new `HtmlOutput` object from a `BlobSource` resource.
`createHtmlOutput(html)`	`HtmlOutput`	Creates a new `HtmlOutput` object that can be returned from the script.
`createHtmlOutputFromFile(filename)`	`HtmlOutput`	Creates a new `HtmlOutput` object from a file in the code editor.
`createTemplate(blob)`	`HtmlTemplate`	Creates a new `HtmlTemplate` object from a `BlobSource` resource.
`createTemplate(html)`	`HtmlTemplate`	Creates a new `HtmlTemplate` object that can be returned from the script.
`createTemplateFromFile(filename)`	`HtmlTemplate`	Creates a new `HtmlTemplate` object from a file in the code editor.
`getUserAgent()`	`String`	Gets the user-agent string for the current browser.

`HtmlTemplate`

Methods

Method	Return type	Brief description
`evaluate()`	`HtmlOutput`	Evaluates this template and returns an `HtmlOutput` object.
`getCode()`	`String`	Generates a string of JavaScript code, based on the template file, that can be evaluated.
`getCodeWithComments()`	`String`	Generates a string of JavaScript code that can be evaluated, with each line of the code containing the original line from the template as a comment.
`getRawContent()`	`String`	Returns the unprocessed content of this template.

`SandboxMode`

Properties

Property	Type	Description
`EMULATED`	`Enum`	A legacy sandbox mode that emulates ECMAScript 5 strict mode using only the features available in ECMAScript 3.
`IFRAME`	`Enum`	A sandbox mode that uses iframe sandboxing instead of the Caja sandbox technology used by the `EMULATED` and `NATIVE` modes.
`NATIVE`	`Enum`	A sandbox mode that is built on top of ECMAScript 5 strict mode.

`XFrameOptionsMode`

Properties

Property	Type	Description
`ALLOWALL`	`Enum`	No `X-Frame-Options` header will be set.
`DEFAULT`	`Enum`	Sets the default value for the `X-Frame-Options` header, which preserves normal security assumptions.