Closed
Bug 448620
Opened 16 years ago
Closed 16 years ago
html page with an img src="" causes to load the page twice (second time call seems to be executed inside the browser)
Categories
(Firefox :: General, defect)
Tracking
()
RESOLVED
DUPLICATE
of bug 225554
People
(Reporter: luisrinaldi, Unassigned)
References
()
Details
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; es-ES; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; es-ES; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1
To see the problem u should try with a server side script like php cos the second call to the page executes inside the browser.
The following php code just call a function to append a file on disk with
the text "Duplicated line" inside. It should write just 1 line every time you call the script but if you have the <img src=""> it will call twice the script.
File: duplicate_call.php
<!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" xml:lang="es">
<body>
<img src="" />
<?
file_put_contents("duplicate_result.log","Duplicated line\n",FILE_APPEND);
?>
</body>
</html>
Reproducible: Always
Steps to Reproduce:
1.Just copy the html code I left on details and save it to a php file
2.Upload the script to a webserver (u'll need write permissions on the same folder u upload the script)
3.Call the script from the web
Actual Results:
u'll notice every time u call the script it will insert two lines of code on duplicate_result.log instead of one.
U can do the same test writing result to a database, u'll get duplicated records for each insert.
Expected Results:
If u remove the <img src=""> tag it will append just one line of code to the file.
If u test with a database it will just insert one record on every call as expected.
I was two hours dealing with a client development trying to understand why I was getting duplicated records executing just one INSERT on my script. I hope this help other people to void a headaches.
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Updated•16 years ago
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Status: UNCONFIRMED → RESOLVED
Closed: 16 years ago
Resolution: --- → DUPLICATE
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Description
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