PROGRESSIVE WEB APPLICATION VERSION

MAY 2022 PHOTO DIARYPHOTOGRAPHED BY WILLIAM MURPHY

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I have, more or less, ignored Dublin during the months of March and April because of my visits to Belfast and Limerick so I decided celebrate the May bank holiday by wandering around the city centre and photographing at random and I used a point-and-shoot camera that I never liked.

The major project of the month will be my week in Cork later this month.

BANDFIELD BY DEIRDRE BREEN STREET ART AUGUST 2021 AND MAY 2022

BANDFIELD BY DEIRDRE BREEN

HIVE IRON WORKS BUILDINGWASHINGTON STREET AND HANOVER STREET IN CORK

HIVE IRON WORKS BUILDING

ST FINBARR'S BRIDGEOPENED TO THE PUBLIC IN 1999

ST FINBARRS BRIDGE IN CORK CITY

THOMAS MAC CURTAIN MEMORIALGREAT WILLIAM O'BRIEN STREET

THOMAS MAC CURTAIN MEMORIAL


OLD BLACKROCK ROADMAY 2022

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WINDMILL ROAD AND THE REPARATION CONVENTCONNECTING SOUTH SUMMERHILL TO HIGH STREET

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TWO VISITS TO BLACKROCK VILLAGE IN CORKAUGUST 2021 AND MAY 2022

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IN CORK RED METAL YOKES ARE BLUEPUBLIC ART IN BLACKROCK MAY 2022

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BLUE METAL SCULPTURE WITH NO NAME BY JOHN BURKEWILTON ROUNDABOUT IN CORK MAY 2022

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TWO VISITS TO DOUGLAS COMMUNITY PARKAUGUST 2021 AND MAY 2022

TWO VISITS TO DOUGLAS COMMUNITY PARK


JACKIE OH MURAL ON WASHINGTON STREET I FIRST PHOTOGRAPHED IT IN JULY 2016

JACKIE OH MURAL 2016

BLACKROCK ROAD IN CORKMAY 2022

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NOT EXACTLY A HANGING GARDENSKY GARDEN IN CORK MAY 2022

NOT EXACTLY A HANGING GARDEN

STATION CLOCK AT THE WRONG LOCATIONBALLINTEMPLE VILLAGE IN CORK MAY 2022

STATION CLOCK AT THE WRONG LOCATION

BLACKROCK AND PASSAGE RAILWAYBLACKROCK ROAD MAY 2022

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THE VENUE PUB AND BEER GARDENBALLINTEMPLE VILLAGE IN CORK MAY 2022

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THE TEMPLE INNBALLINTEMPLE VILLAGE IN CORK MAY 2022

THE TEMPLE INN

BASIL MARKET AND DELIBALLINTEMPLE VILLAGE IN CORK MAY 2022

BASIL MARKET AND DELI

PHOTOGRAPHED FROM WITHIN THE CAMPUSGRANGEGORMAN MAY 2022

TU CAMPUS MAY 2022

AFRICAN MISSIONS ATTRACTIVE CHURCH ON BLACKROCK ROAD IN CORK MAY 2022

ATTRACTIVE CHURCH ON BLACKROCK ROAD IN CORK MAY 2022

COIS NA LAOISCULPTURE BY AMERICAN ARTIST BETTY GOLD

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THE MARDYKE WALKCORK CITY IN MAY 2022

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BRIDGE VIEW FLOWERS MAY 2022CEASED TRADING

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THOMAS DAVIS BRIDGE MAY 2022ORIGINALLY THE WELLINGTON BRIDGE

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SIDNEY PARK MAY 2022VICTORIAN QUARTER OF CORK

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THE CROW'S NEST STUDENT COMPLEXAS SEEN FROM VICTORIA CROSS ROAD

THE CROW

VICTORIA CROSS CYCLESND THE CROW'S NEST STUDENT ACCOMMODATION COMPLEX

VICTORIA CROSS CYCLES

THE BEGGARMAN PUB98 STREET AND GILLABBEY STREET MAY 2022

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WYLAM CHINESE RESTAURANTVICTORIA CROSS ROAD IN CORK MAY 2022

WYLAM CHINESE RESTAURANT IN CORK MAY 2022

MURAL BY FRIZ NOONAN ROAD IN CORK MAY 2022

MURAL BY FRIZ NOONAN ROAD CORK

THE ATLANTIC PONDAS IT WAS IN AUGUST 2021

THE ATLANTIC POND AS IT WAS IN AUGUST 2021

TIVOLI DOCKSMAY 2022 AS SEEN FROM THE CORK MARINA

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A WALK ALONG THE MARINAMAY 2022

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SHELTER KNOWN AS THE SHACK AT CORK MARINAAUGUST 2022 THE COVID PROTEST HAS BEEN PAINTED OVER

AUGUST 2022 THE COVID PROTEST HAS BEEN PAINTED OVER

CUSTOM HOUSE QUAY AND ANDERSON'S QUAY MAY 2022 VISIT TO CORK HARBOUR

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PASSAGE WESTMAY 2022 VISIT TO CORK HARBOUR

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SISTERS OF MERCY DERELICT CONVENTPASSAGE WEST MAY 2022

DERELICT CONVENT IN PASSAGE WEST

ST MARY'S CATHOLIC CHURCH AD 1791PASSAGE WEST CORK MAY 2022

ST MARY

GREAT WALL CHINESE RESTAURANTPASSAGE WEST CORK MAY 2022

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MONAHAN ROADCORK CITY

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CITY BY PAT O'SULLIVANSOUTH MALL IN CORK MAY 2022

CITY BY PAT O

MARIAN STATUEHARRINGTON SQUARE AT DILLONS CROSS IN CORK

MARIAN STATUE AT DILLONS CROSS IN CORK CITY

WOLFE TONE PARK REOPENED 16 MAY 2022NOW A GREEN PUB LIC SPACE

WOLFE TONE PARK REOPENED 16 MAY 2022

PAVILION OF LIGHT BANDSTANDFITZGERALD PARK MAY 2022

PAVILION OF LIGHT BANDSTAND

CHURCH OF THE HOLY SPIRITDENNEHYS CROSS CORK MAY 2022

CHURCH OF THE HOLY SPIRIT

GALLERY OF STREET ART ON FERRY WALKNEAR THE SHAKEY BRIDGE MAY 2022

GALLERY OF STREET ART ON FERRY WALK

CAVANAGH PEDESTRAIN BRIDGECORK UNIVERSITY CAMPUS MAY 2022

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DALY'S BRIDGE PHOTOGRAPHED MAY 2022KNOWN LOCALLY AS THE SHAKEY BRIDGE

KNOWN LOCALLY AS THE SHAKEY BRIDGE

CORK STREET AND PATRICK MURPHY PARKPASSAGE WEST MAY 2022

CORK STREET AND PATRICK MURPHY PARK

THE NEW MARINA PARKPHOTOGRAPHED IN MAY 2022

NEW MARINA PARK MAY 2022

THE GLUCKSMANCORK UNIVERSITY CAMPUS MAY 2022

THE GLUCKSMAN AT CORK UNIVERSITY

SIRIUS HOUSEPASSAGE WEST MAY 2022

SIRIUS HOUSE IN PASSAGE WEST

MORRISON'S ISLANDPHOTOGRAPHED IN MAY 2022

MORRISONS ISLAND MAY 2022

THE NEW MARINA PARKPHOTOGRAPHED IN MAY 2022

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CHA AND MIAH WHEN THEY WERE BOYSSTATUES BY BRENDAN BYRNE AT THE KINGSLEY HOTEL IN CORK

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CHA AND MIAH MAY 2022THE TWO WORKING MEN STATUES BY OISIN KELLY

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ST FINBARR'S CEMETERY MAY 2022A BEAUTIFUL DAY FOR PHOTOGRAPHY

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GABRIEL HOUSE GUESTHOUSEIT REALLY IS THE HOUSE ON THE HILL

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J. O'DONOVAN AND SONS LTDATTRACTIVE SHOP IN PASSAGE WEST

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METROPOLIS 1927STREET ART AT 66 CAPEL STREET

METROPOLIS 1927

I PROMISED TO REVISITMY SECOND VISIT TO THE NEW PUBLIC PARK ON BRIDGEFOOT STREET

I PROMISED TO REVISIT THIS NEW PUBLIC SPACE

RICHIE TAPLIN MEMORIALAT BRIDGEFOOT STREET

RICHIE TAPLIN MEMORIAL

NEW PUBLIC PARK ON BRIDGEFOOT STREETOPENED 4 MAY 2022

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DONATED FOUNTAININ MEMORY OF JAMES A POWER

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CHRIST CHURCH CATHEDRALMAY BANK HOLIDAY 2022

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FRANCIS STREETMAY BANK HOLIDAY 2022

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MOLLOYS OFF-LICENCE ON FRANCIS STREETMAY BANK HOLIDAY 2022

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MABS OFFICE ON FRANCIS STREET HAS CLOSEDMAY BANK HOLIDAY 2022

MABS OFFICE ON FRANCIS STREET HAS CLOSED

SMITHFIELD MARKETMAY BANK HOLIDAY 2022

SMITHFIELD MARKET

WOLFE TONE SQUARE MAY 2022NOW A GREEN PUBLIC SPACE

WOLFE TONE SQUARE MAY 2022

ST AUDOENS PARK MAY 2022 BANK HOLIDAY

ST AUDOENS PARK

TEMPLE BARMAY 2022 BANK HOLIDAY

TEMPLE BAR AREA OF DUBLIN

THE BIKE YARD HAS DISAPPEAREDRYDERS ROW MAY 2022

THE BIKE YARD AT RYDERS ROW HAS CLOSED

THE NEW TIVOLI QUARTERFRANCIS STREET MAY 2022 BANK HOLIDAY.

THE NEW TIVOLI QUARTER

DUBLIN CASTLEMAY 2022 BANK HOLIDAY.

DUBLIN CASTLE MAY BANK HOLIDAY 2022

This site is currently being rebuilt in the background and the current major project is to switch to PWA during 2022 and this has proved to be more difficult than expected.

A progressive web application (PWA), commonly known as a progressive web app, is a type of application software delivered through the web, built using common web technologies including HTML, CSS, JavaScript, and WebAssembly. It is intended to work on any platform that uses a standards-compliant browser, including both desktop and mobile devices.

As of 2021, PWA features are supported to varying degrees by Google Chrome, Apple Safari, Firefox for Android, and Microsoft Edge but not by Firefox for desktop.


Since a progressive web app is a type of webpage or website known as a web application, they do not require separate bundling or distribution. Developers can just publish the web application online, ensure that it meets baseline "installability requirements", and users will be able to add the application to their home screen. Publishing the app to digital distribution systems like Apple App Store or Google Play is optional.

In 2015, designer Frances Berriman and Google Chrome engineer Alex Russell coined the term "progressive web apps" to describe apps taking advantage of new features supported by modern browsers, including service workers and web app manifests, that let users upgrade web apps to progressive web applications in their native operating system (OS). Google then put significant efforts into promoting PWA development for Android. Firefox introduced support for service workers in 2016, and Microsoft Edge and Apple Safari followed in 2018, making service workers available on all major systems.

By 2019, PWAs were supported by desktop versions of most browsers, including Microsoft Edge (on Windows) and Google Chrome[ (on Windows, macOS, Chrome OS and Linux).

In December 2020, Firefox for desktop abandoned implementation of PWAs (specifically, removed the prototype "site-specific browser" configuration that had been available as an experimental feature). A Firefox architect noted: "The signal I hope we are sending is that PWA support is not coming to desktop Firefox anytime soon." Mozilla still plans to support PWAs on Android.


Since a progressive web app is a type of webpage or website known as a web application, they do not require separate bundling or distribution. In particular, there is no requirement for developers or users to install the web apps via digital distribution systems like Apple App Store, Google Play, Microsoft Store or Samsung Galaxy Store. To varying degrees, the major app stores support publication of PWAs.[1] Google Play, Microsoft Store,[19] and Samsung Galaxy Store support PWAs, but Apple App Store does not. Microsoft Store publishes some qualifying PWAs automatically (even without app authors' request) after discovering them via Bing indexing.
Progressive web apps are all designed to work on any browser that is compliant with the appropriate web standards. As with other cross-platform solutions, the goal is to help developers build cross-platform apps more easily than they would with native apps. Progressive web apps employ the progressive enhancement web development strategy.

Some progressive web apps use an architectural approach called the App Shell Model.[ In this model, service workers store the Basic User Interface or "shell" of the responsive web design web application in the browser's offline cache. This model allows for PWAs to maintain native-like use with or without web connectivity. This can improve loading time, by providing an initial static frame, a layout or architecture into which content can be loaded progressively as well as dynamically.

The technical baseline criteria for a site to be considered a progressive web app and therefore "installable" by browsers were described by Russell in a follow-up post[23] and updated since:

Originate from a secure origin. Served over TLS and green padlock displays (no active mixed content). Progressive web apps must be served via HTTPS to ensure user privacy, security, and content authenticity.

Register a service worker with a fetch handler. Progressive web apps must use service workers to create programmable content caches. Unlike regular HTTP web cache, which caches content after the first use and then relies on various heuristics to guess when content is no longer needed, programmable caches can explicitly prefetch content in advance before it's used for the first time and explicitly discard it when it is no longer needed. This requirement helps pages to be accessible offline or on low quality networks.

Reference a web app manifest. The manifest must contain at least the five key properties: name or short_name, start_url, and display (with a value of standalone, fullscreen or minimal-ui), and icons (with 192px and a 512px versions). Information contained in manifest makes PWAs easily shareable via a URL, discoverable by a search engines, and alleviates complex installation procedures (but PWAs still can be listed in a third-party app store).[27] Furthermore, PWAs support native app-style interactions and navigation, including being added to home screen, displaying splashscreens, etc.



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