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Shows developer tools.

Component Version macOS Windows Linux Server iOS SDK
WebView 11.5 ❌ No ✅ Yes ❌ No ❌ No ❌ No
MBS( "WebView.ShowDevTools"; WebViewerRef )   More


Parameter Description Example
WebViewerRef Either the Web Viewer Object Name or the Web Viewer ID as returned by "WebView.FindByName" function.


Returns OK or error.


Shows developer tools.
You open the window by script, enjoy using inspector, console and debuggers.
Implemented for Windows with Microsoft Edge/Chrome engine in MBS Plugin 11.5 when using FileMaker Pro 19.4 or newer. Does not work in FileMaker Pro 19.3.

For macOS see WebView.SetPreferences function and developerExtrasEnabled setting.


Show developer tools:

Set Variable [$r; Value: MBS( "WebView.ShowDevTools"; "web" ) ]

See also

Release notes

Blog Entries

Created 28th September 2021, last changed 27th June 2022

WebView.ShowDebugBar - WebView.StopLoading

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