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Revision 13a707c6

Added by koszko over 1 year ago

serialize and deserialize entire Response object when relaying fetch() calls to other contexts using sendMessage

View differences:

content/repo_query_cacher.js
43 43 
 */
44 44 

  		




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#FROM common/browser.js IMPORT browser


  		




  
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#FROM common/misc.js    IMPORT error_data_jsonifiable


  		




  46
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/*


  		




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 * Map URLs to objects containing parsed responses, error info or promises


  		




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 * resolving to those.


  		




  
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 * resolving to those. The use of promises helps us prevent multiple requests


  		




  
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 * for the same resource from starting concurrently.


  		




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 */


  		




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const cache = new Map();


  		




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  ......




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    cache.set(url, new Promise(cb => resolve_cb = cb));


  		




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    try {


  		




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	const opts = {url, to_get: ["ok", "status"], to_call: ["json"]};


  		




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	var result = await browser.runtime.sendMessage(["CORS_bypass", opts]);


  		




  
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	var result = await browser.runtime.sendMessage(["CORS_bypass", {url}]);


  		




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	if (result === undefined)


  		




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	    result = {error: "Couldn't communicate with background script."};


  		




  
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	    throw new Error("Couldn't communicate with background script.");


  		




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    } catch(e) {


  		




  66
  
  
    
	var result = {error: e + ""};


  		




  
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	return {error: error_data_jsonifiable(e)};


  		




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    }


  		




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    cache.set(url, result);


  		












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