How do I make this sample code from MSDN work in Chrome
MSDN gives the following Javascript code for querying the Bing Image Search API. It works fine in IE but breaks in Chrome. How can I fix it to be compatible across browsers?
MSDN JSON Code Sample (Image SourceType)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Bing API 2.0 Image Sample</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<script id="searchCallback" type="text/javascript" src="">
</script>
<script type="text/javascript">
// Replace the following string with the AppId you received from the
// Bing Developer Center.
var AppId = "AppID Intentionally Omitted";
// Bing API 2.0 code sample demonstrating the use of the
// Image SourceType over the JSON Protocol.
function Search()
{
var requestStr = "http://api.bing.net/json.aspx?"
// Common request fields (required)
+ "AppId=" + AppId
+ "&Query=xbox site:microsoft.com"
+ "&Sources=Image"
// Common request fields (optional)
+ "&Version=2.0"
+ "&Market=en-us"
+ "&Adult=Moderate"
// Image-specific request fields (optional)
+ "&Image.Count=10"
+ "&Image.Offset=0"
// JSON-specific request fields (optional)
+ "&JsonType=callback"
+ "&JsonCallback=SearchCompleted";
var requestScript = document.getElementById("searchCallback");
requestScript.src = requestStr;
}
function SearchCompleted(response)
{
var errors = response.SearchResponse.Errors;
if (errors != null)
{
// There are errors in the response. Display error details.
DisplayErrors(errors);
}
else
{
// There were no errors in the response. Display the
// Image results.
DisplayResults(response);
}
}
function DisplayResults(response)
{
var output = document.getElementById("output");
var resultsHeader = document.createElement("h4");
var resultsList = document.createElement("ul");
output.appendChild(resultsHeader);
output.appendChild(resultsList);
var results = response.SearchResponse.Image.Results;
// Display the results header.
resultsHeader.innerHTML = "Bing API Version "
+ response.SearchResponse.Version
+ "<br />Image results for "
+ response.SearchResponse.Query.SearchTerms
+ "<br />Displaying "
+ (response.SearchResponse.Image.Offset + 1)
+ " to "
+ (response.SearchResponse.Image.Offset + results.length)
+ " of "
+ response.SearchResponse.Image.Total
+ " results<br />";
// Display the Image results.
var resultsListItem = null;
for (var i = 0; i < results.length; ++i)
{
resultsListItem = document.createElement("li");
resultsList.appendChild(resultsListItem);
resultsListItem.innerHTML = "<a href=\""
+ results[i].MediaUrl
+ "\"><img src=\""
+ results[i].Thumbnail.Url
+ "\"></a><br /><a href=\""
+ results[i].Url
+ "\">"
+ results[i].Title
+ "</a><br />Dimensions: "
+ results[i].Width
+ "x"
+ results[i].Height
+ "<br /><br />";
}
}
function DisplayErrors(errors)
{
var output = document.getElementById("output");
var errorsHeader = document.createElement("h4");
var errorsList = document.createElement("ul");
output.appendChild(errorsHeader);
output.appendChild(errorsList);
// Iterate over the list of errors and display error details.
errorsHeader.innerHTML = "Errors:";
var errorsListItem = null;
for (var i = 0; i < errors.length; ++i)
{
errorsListItem = document.createElement("li");
errorsList.appendChild(errorsListItem);
errorsListItem.innerHTML = "";
for (var errorDetail in errors[i])
{
errorsListItem.innerHTML += errorDetail
+ ": "
+ errors[i][errorDetail]
+ "<br />";
}
errorsListItem.innerHTML += "<br />";
}
}
</script>
</head>
<body onload="Search()">
<div id="output"></div>
</body>
</html>
When I inspect the Javascript using Chrome I see the following error and warning:
- Uncaught SyntaxError: Unexpected token <
- Resource interpreted as Script but transferred with MIME type text/html.
The unexpected token error seems to refer to searchCallBack. It's not clear where the MIME type warnin开发者_StackOverflow中文版g is coming from.
I don't know if the sample itself will work on Chrome, but the issue is this line:
<script id="searchCallback" type="text/javascript" src="">
You'll have to remove the "src" attribute. Chrome complains about the non-existing source. This will fix the error:
<script id="searchCallback" type="text/javascript">
Don't bother about the MIME warning. Chrome just complains that the MIME type of the script is incorrect but this should not cause problems.
EDIT:
Here's a working solution for all browsers. Chrome & Co. don't like changing the src attribute of the script tag. Instead they prefer to get a script tag created dynamically.
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Bing API 2.0 Image Sample</title>
<meta http-equiv="X-UA-Compatible" content="IE=8" >
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<script type="text/javascript">
// Replace the following string with the AppId you received from the
// Bing Developer Center.
var AppId = "1DB8A37DAB934B531CDC74CF614F386431D69FD3";
// Bing API 2.0 code sample demonstrating the use of the
// Image SourceType over the JSON Protocol.
function Search()
{
var requestStr = "http://api.bing.net/json.aspx?"
// Common request fields (required)
+ "AppId=" + AppId
+ "&Query=xbox site:microsoft.com"
+ "&Sources=Image"
// Common request fields (optional)
+ "&Version=2.0"
+ "&Market=en-us"
+ "&Adult=Moderate"
// Image-specific request fields (optional)
+ "&Image.Count=10"
+ "&Image.Offset=0"
// JSON-specific request fields (optional)
+ "&JsonType=callback"
+ "&JsonCallback=SearchCompleted";
var elHead= document.getElementsByTagName("head")[0];
var oScript = document.createElement("script");
oScript.type= 'text/javascript';
oScript.src= requestStr;
elHead.appendChild(oScript);
}
function SearchCompleted(response)
{
var errors = response.SearchResponse.Errors;
if (errors != null)
{
// There are errors in the response. Display error details.
DisplayErrors(errors);
}
else
{
// There were no errors in the response. Display the
// Image results.
DisplayResults(response);
}
}
function DisplayResults(response)
{
var output = document.getElementById("output");
var resultsHeader = document.createElement("h4");
var resultsList = document.createElement("ul");
output.appendChild(resultsHeader);
output.appendChild(resultsList);
var results = response.SearchResponse.Image.Results;
// Display the results header.
resultsHeader.innerHTML = "Bing API Version "
+ response.SearchResponse.Version
+ "<br />Image results for "
+ response.SearchResponse.Query.SearchTerms
+ "<br />Displaying "
+ (response.SearchResponse.Image.Offset + 1)
+ " to "
+ (response.SearchResponse.Image.Offset + results.length)
+ " of "
+ response.SearchResponse.Image.Total
+ " results<br />";
// Display the Image results.
var resultsListItem = null;
for (var i = 0; i < results.length; ++i)
{
resultsListItem = document.createElement("li");
resultsList.appendChild(resultsListItem);
resultsListItem.innerHTML = "<a href=\""
+ results[i].MediaUrl
+ "\"><img src=\""
+ results[i].Thumbnail.Url
+ "\"></a><br /><a href=\""
+ results[i].Url
+ "\">"
+ results[i].Title
+ "</a><br />Dimensions: "
+ results[i].Width
+ "x"
+ results[i].Height
+ "<br /><br />";
}
}
function DisplayErrors(errors)
{
var output = document.getElementById("output");
var errorsHeader = document.createElement("h4");
var errorsList = document.createElement("ul");
output.appendChild(errorsHeader);
output.appendChild(errorsList);
// Iterate over the list of errors and display error details.
errorsHeader.innerHTML = "Errors:";
var errorsListItem = null;
for (var i = 0; i < errors.length; ++i)
{
errorsListItem = document.createElement("li");
errorsList.appendChild(errorsListItem);
errorsListItem.innerHTML = "";
for (var errorDetail in errors[i])
{
errorsListItem.innerHTML += errorDetail
+ ": "
+ errors[i][errorDetail]
+ "<br />";
}
errorsListItem.innerHTML += "<br />";
}
}
</script>
</head>
<body onload="Search()">
<div id="output"></div>
</body>
</html>
加载中,请稍侯......
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