AI-generated Key Takeaways
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XFrameOptionsMode is an enum used for client-side HtmlService scripts to represent X-Frame-Options modes.
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These modes can be accessed via HtmlService.XFrameOptionsMode and set using HtmlOutput.setXFrameOptionsMode(mode).
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Setting XFrameOptionsMode.ALLOWALL allows any site to iframe the page, requiring the developer to implement clickjacking protection.
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The default X-Frame-Options mode used by Apps Script if none is set is DEFAULT.
An enum representing the X-Frame-Options
modes that can be used for client-side Html
scripts. These values can be accessed from Html
,
and set by calling Html
.
To call an enum, you call its parent class, name, and property. For example, HtmlService.XFrameOptionsMode.ALLOWALL
.
Setting XFrameOptionsMode.ALLOWALL
will let any site iframe the page, so the developer
should implement their own protection against clickjacking.
If a script does not set an X-Frame-Options
mode, Apps Script uses DEFAULT
mode as the default.
// Serve HTML with no X-Frame-Options header (in Apps Script server-side code). const output = HtmlService . createHtmlOutput ( '<b>Hello, world!</b>' ); output . setXFrameOptionsMode ( HtmlService . XFrameOptionsMode . ALLOWALL );
Properties
| Property | Type | Description |
|---|---|---|
ALLOWALL
|
Enum
|
No X-Frame-Options
header will be set. This will let any site iframe the page, so the
developer should implement their own protection against clickjacking. |
DEFAULT
|
Enum
|
Sets the default value for the X-Frame-Options
header, which preserves normal security
assumptions. If a script does not set an X-Frame-Options
mode, Apps Script uses this
mode as the default. |
