WKWebViewMBS.allowFileAccessFromFileURLs as Boolean

Dim browser As WKWebViewMBS // your instance

browser.allowFileAccessFromFileURLs = True

Access to files is allowed for some files.
Please check WebKit documentation for details.

Set allowFileAccessFromFileURLs and allowUniversalAccessFromFileURLs to true to disable all the security checks to block local file access for websites. allowUniversalAccessFromFileURLs would allow all file URLs. allowFileAccessFromFileURLs would only allow in same path.
(Read and Write property)

WKWebViewMBS.allowsBackForwardNavigationGestures as Boolean

Dim browser As WKWebViewMBS // your instance

browser.allowsBackForwardNavigationGestures = True

The default value is false.
(Read and Write property)

WKWebViewMBS.allowsLinkPreview as Boolean

Dim browser As WKWebViewMBS // your instance

browser.allowsLinkPreview = True

(Read and Write property)

WKWebViewMBS.allowsMagnification as Boolean

Dim browser As WKWebViewMBS // your instance

browser.allowsMagnification = True

The default value is false. You can set the magnification property even if allowsMagnification is set to false.
For MacOS 64-bit only.
(Read and Write property)

WKWebViewMBS.allowUniversalAccessFromFileURLs as Boolean

Any file URL will be loaded if true.
Please check WebKit documentation for details.

Does not work in MacOS 10.14.
(Read and Write property)

WKWebViewMBS.backForwardList as WKWebViewMBS

(Read only property)

WKWebViewMBS.backgroundColor as NSColorMBS

Dim w As WKWebViewMBS = HTMLViewer1.WKWebViewMBS // your webviewer

w.drawsBackground = False
w.backgroundColor = NSColorMBS.clearColor

If background is not drawn and/or transparent, you may see through.
Requires also CSS to have web view page transparent.
(Read and Write property)

WKWebViewMBS.CanGoBack as Boolean

Dim browser As WKWebViewMBS // your instance

MsgBox "CanGoBack: "+If(Browser.CanGoBack, "yes", "no")

(Read only property)

WKWebViewMBS.CanGoForward as Boolean

Dim browser As WKWebViewMBS // your instance

MsgBox "CanGoForward: "+If(Browser.CanGoForward, "yes", "no")

(Read only property)

WKWebViewMBS.Configuration as WKWebViewConfigurationMBS

(Read only property)

WKWebViewMBS.customUserAgent as String

Dim browser As WKWebViewMBS // your instance

browser.customUserAgent = "MyBrowser/1.0"

If no custom user agent string has been set, this is set to "".
Available in 32-bit. Available in 64-bit for macOS 10.11 or newer.
(Read and Write property)

WKWebViewMBS.developerExtrasEnabled as Boolean

Dim browser As WKWebViewMBS // your instance

// enable context menu entry to show developer extras
browser.developerExtrasEnabled = True

Enables the context menu to inspect items.
(Read and Write property)

WKWebViewMBS.drawsBackground as Boolean

Dim w As WKWebViewMBS = HTMLViewer1.WKWebViewMBS // your webviewer

w.drawsBackground = False
w.backgroundColor = NSColorMBS.clearColor

If background is not drawn and/or transparent, you may see through.
Requires also CSS to have web view page transparent.
(Read and Write property)

WKWebViewMBS.EstimatedProgress as Double

This value ranges from 0.0 to 1.0 based on the total number of bytes expected to be received, including the main document and all of its potential subresources. After a navigation loading completes, the estimatedProgress remains at 1.0 until a new navigation starts, at which point the estimatedProgress is reset to 0.0.
(Read only property)

WKWebViewMBS.hasOnlySecureContent as Boolean

Dim browser As WKWebViewMBS // your instance

MsgBox "hasOnlySecureContent: "+If(Browser.hasOnlySecureContent, "yes", "no")

Only set for 64-bit, always false on 32-bit.
(Read only property)

WKWebViewMBS.HTTPCookieStore as WKHTTPCookieStoreMBS

Dim CookieStore As WKHTTPCookieStoreMBS = WKWebViewControlMBS1.WKWebView.HTTPCookieStore
Dim cookies() As NSHTTPCookieMBS = CookieStore.AllCookies
Dim cookie As NSHTTPCookieMBS = cookies(0)

// now check in debugger
Break

(Read only property)

WKWebViewMBS.IsLoading as Boolean

Dim browser As WKWebViewMBS // your instance

// load a page
browser.LoadURL "https://www.mbsplugins.de/xojo"

// wait synchronously for website loading
While browser.IsLoading
  DelayMBS 0.1
Wend

MsgBox "loaded"

(Read only property)

WKWebViewMBS.javaEnabled as Boolean

Dim browser As WKWebViewMBS // your instance

MsgBox "JavaScript Enabled: "+If(Browser.javaEnabled, "yes", "no")

(Read and Write property)

WKWebViewMBS.javaScriptCanOpenWindowsAutomatically as Boolean

Dim browser As WKWebViewMBS // your instance

// disable popup windows
Browser.javaScriptCanOpenWindowsAutomatically = False

(Read and Write property)

WKWebViewMBS.javaScriptEnabled as Boolean

Dim browser As WKWebViewMBS // your instance

MsgBox "JavaScript Enabled: "+If(Browser.javaScriptEnabled, "yes", "no")

Error is only set with 64-bit, not with 32-bit.
Tag is passed from EvaluateJavaScript call.
(Read and Write property)

WKWebViewMBS.loadsImagesAutomatically as Boolean

Dim browser As WKWebViewMBS // your instance

// disable loading of images
browser.loadsImagesAutomatically = False

(Read and Write property)

WKWebViewMBS.magnification as Double

Dim browser As WKWebViewMBS // your instance

browser.magnification = 2.0

The default value is 1.0.
For MacOS 64-bit only.
(Read and Write property)

WKWebViewMBS.mediaType as String

The value of mediaType will override the normal value of the CSS media property.
Setting the value to "" will restore the normal value.
The default value is "".

Available in macOS 11.0 or newer.
(Read and Write property)

WKWebViewMBS.MIMEType as String

Should be "text/html" for a website or "application/pdf" for a PDF document.
(Read only property)

WKWebViewMBS.minimumFontSize as Double

Dim browser As WKWebViewMBS // your instance

browser.minimumFontSize = 20

(Read and Write property)

WKWebViewMBS.pageZoom as Double

The default value is 1.0.
Changing this value is equivalent to web content setting the CSS "zoom" property on all page content.

Available in macOS 11.0 or newer.
(Read and Write property)

WKWebViewMBS.plugInsEnabled as Boolean

Dim browser As WKWebViewMBS // your instance

MsgBox "plugInsEnabled: "+If(Browser.plugInsEnabled, "yes", "no")

(Read and Write property)

WKWebViewMBS.Preferences as WKPreferencesMBS

(Read only property)

WKWebViewMBS.privateBrowsing as Boolean

Dim browser As WKWebViewMBS // your instance

MsgBox "privateBrowsing: "+If(Browser.privateBrowsing, "yes", "no")

If enabled, no data should be stored for cookies or cache on disk, so it's cleared when web viewer is destroyed.
Default is non-private mode for the web viewer.

It looks like you can't change mode after web viewer was created.
(Read and Write property)

WKWebViewMBS.Title as String

Dim browser As WKWebViewMBS // your instance

MsgBox Browser.Title

(Read only property)

WKWebViewMBS.URL as String

Dim browser As WKWebViewMBS // your instance

MsgBox Browser.URL

This is the URL that should be reflected in the user interface.
(Read only property)