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blocks:api:javascript [2023-08-09 13:08] – Fix typos melvinblocks:api:javascript [2025-10-01 13:22] (current) – [Additional Web Block Interaction Capabilities (postMessage)] mattias
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 </code> </code>
  
-==== Additional Web Block Interaction Capabilities ====+==== Additional Web Block Interaction Capabilities (postMessage) ====
  
 Custom code hosted inside a Web Block has some additional capabilities for talking to the enclosing Spot. Those are made available through the the browser's //window.parent.postMessage// function, passing various messages and parameters out of the IFRAME hosting the Web Block, then handled by the main Spot code. Custom code hosted inside a Web Block has some additional capabilities for talking to the enclosing Spot. Those are made available through the the browser's //window.parent.postMessage// function, passing various messages and parameters out of the IFRAME hosting the Web Block, then handled by the main Spot code.